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	<title>Note applicative su profilometria, geometria e forma - NANOVEA: Profilometri, tribometri, nanoindentatori e graffiatori avanzati per le prove sui materiali</title>
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	<title>Note applicative su profilometria, geometria e forma - NANOVEA: Profilometri, tribometri, nanoindentatori e graffiatori avanzati per le prove sui materiali</title>
	<link>https://nanovea.com/it/categoria/note-sullapplicazione/test-di-profilometria/profilometria-geometria-forma/</link>
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		<title>Stent Coating Adhesion and Delamination Analysis Using Nano Scratch Testing</title>
		<link>https://nanovea.com/it/stent-coating-adhesion-testing-nano-scratch/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=stent-coating-adhesion-testing-nano-scratch</link>
					<comments>https://nanovea.com/it/stent-coating-adhesion-testing-nano-scratch/#respond</comments>
		
		<dc:creator><![CDATA[Andrew Shore]]></dc:creator>
		<pubdate>Wed, 25 Mar 2026 20:57:16 +0000</pubdate>
				<category><![CDATA[Application Notes]]></category>
		<category><![CDATA[Laboratory Testing]]></category>
		<category><![CDATA[Profilometry | Geometry and Shape]]></category>
		<category><![CDATA[Profilometry | Roughness and Finish]]></category>
		<category><![CDATA[Profilometry | Texture and Grain]]></category>
		<category><![CDATA[Profilometry Testing]]></category>
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					<description><![CDATA[<p>Application Note &#124; Stent Coating Adhesion Testing Stent Coating Adhesion and Delamination Analysis Using Nano Scratch Testing Quantifying Coating Failure and Adhesion Performance on Drug-Eluting Stents Request Coating Adhesion Testing Speak with an Application Engineer Research &#38; Experimental Testing Duanjie Li, PhD Visual Design &#38; Editorial Andrew Shore Introduction Blood is carried through arteries from [&#8230;]</p>
<p>The post <a href="https://nanovea.com/it/stent-coating-adhesion-testing-nano-scratch/">Stent Coating Adhesion and Delamination Analysis Using Nano Scratch Testing</a> appeared first on <a href="https://nanovea.com/it">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
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									<p>Application Note | Stent Coating Adhesion Testing</p>								</div>
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					<h1 class="elementor-heading-title elementor-size-default">Stent Coating Adhesion and Delamination Analysis Using Nano Scratch Testing</h1>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">Quantifying Coating Failure and Adhesion Performance on Drug-Eluting Stents</h2>				</div>
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															<img fetchpriority="high" decoding="async" width="1400" height="420" src="https://nanovea.com/wp-content/uploads/2026/03/stent-coating-delamination-nano-scratch-critical-load.jpg" class="attachment-full size-full wp-image-26273" alt="stent coating adhesion testing nano scratch delamination critical load" />															</div>
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					<p class="elementor-heading-title elementor-size-default">Duanjie Li, PhD</p>				</div>
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					<p class="elementor-heading-title elementor-size-default">Andrew Shore</p>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">Introduzione</h2>				</div>
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									<p data-start="836" data-end="1458">Blood is carried through arteries from the heart to the rest of the body. Any weakening or blockage of these vessels can pose significant health risks and may become life-threatening. A stent is a small mesh tube inserted into the lumen of a blood vessel to treat narrowed or weakened arteries. Stent implantation is now a widely used procedure to support the arterial wall and restore blood flowᶦ.</p>								</div>
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															<img decoding="async" width="1200" height="320" src="https://nanovea.com/wp-content/uploads/2026/03/medical-stent-mesh-structure-metal-stent-geometry.jpg" class="attachment-full size-full wp-image-26304" alt="" />															</div>
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									<p>Metal stent mesh geometry illustrating the structural complexity of vascular implant design.</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">Why coating adhesion matters in drug-eluting stents</h2>				</div>
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									<p data-start="786" data-end="1054">Drug-eluting stents represent a major advancement in stent technology. They incorporate a biodegradable, biocompatible polymer coating that enables controlled drug release at the arterial site, helping to inhibit intimal thickening and reduce the risk of restenosisᶦᶦ.</p><p data-start="1056" data-end="1284">A critical concern in these systems is the delamination of the polymer coating from the metallic stent substrate. This coating carries the drug-eluting layer, and its adhesion directly impacts device performance and reliability.</p><p data-start="1286" data-end="1537">To improve coating adhesion, stents are often designed with complex geometries. In this study, the polymer coating is located at the bottom of grooves within the stent mesh. This configuration presents a significant challenge for adhesion measurement.</p><p data-start="1539" data-end="1795">A reliable method is required to quantitatively evaluate the interfacial strength between the polymer coating and the metal substrate. The small diameter of the stent mesh, comparable to a human hair, combined with its three-dimensional geometry, requires:</p><ul data-start="1796" data-end="1916"><li data-section-id="1n0qc6y" data-start="1796" data-end="1834">ultrafine X-Y positioning accuracy</li><li data-section-id="1003zy" data-start="1835" data-end="1870">precise control of applied load</li><li data-section-id="q3r43w" data-start="1871" data-end="1916">accurate depth measurement during testing</li></ul>								</div>
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									<p>ℹ️<em data-start="1410" data-end="1468"> Per saperne di più <a href="https://nanovea.com/nanoindentation-and-scratch-testing-lab-services/">nanoindentation and scratch testing lab services for coating adhesion and failure analysis</a>.</em></p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">Measurement Method</h2>				</div>
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									<p data-start="267" data-end="454">Nano scratch testing is performed using the <a href="https://nanovea.com/instruments/pb1000/">Tester meccanico NANOVEA PB1000</a>, in Nano Scratch Mode, to evaluate the cohesive and adhesive strength of the polymer coating on the metal mesh of stent samples.</p><p data-start="460" data-end="648">Controlled scratch measurements are carried out on stent geometries with dimensions comparable to a human hair, enabling precise evaluation of coating adhesion on complex stent structures.</p>								</div>
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							<img decoding="async" width="300" height="264" src="https://nanovea.com/wp-content/uploads/2026/01/nanoindenter-scratch-tester-platform-nanovea-pb1000.jpg" class="elementor-animation-grow attachment-medium size-medium wp-image-25767" alt="Piattaforma di nanoindentazione e scratch tester NANOVEA PB1000 con moduli di nano e micro indentazione" />								</a>
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					<h2 class="elementor-heading-title elementor-size-default">Condizioni di prova</h2>				</div>
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					<h3 class="elementor-heading-title elementor-size-default">1. Regular Stent Samples</h3>				</div>
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									<p data-start="1228" data-end="1620">The stent is fixed on the sample stage, with a support wire inserted inside the stent tube to ensure stability during nano scratch testing. The NANOVEA Mechanical Tester is used to perform nano scratch measurements using the parameters summarized in Table 1, to evaluate the cohesive and adhesive strength of the polymer coating on the metal substrate.</p>								</div>
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									<div class="measurement-table-wrapper"><table class="measurement-table"><thead><tr><th>Parameter</th><th>Value</th></tr></thead><tbody><tr><td>Load type</td><td>Progressivo</td></tr><tr><td>Initial load</td><td>0.05 mN</td></tr><tr><td>Final load</td><td>300 and 100 mN</td></tr><tr><td>Sliding speed</td><td>0.5 mm/min</td></tr><tr><td>Sliding distance</td><td>0.5 mm</td></tr><tr><td>Indenter geometry</td><td>Conico</td></tr><tr><td>Indenter material (tip)</td><td>Diamante</td></tr><tr><td>Raggio della punta del penetratore</td><td>20 µm</td></tr><tr><td>Temperatura</td><td>24°C (room)</td></tr></tbody></table></div>								</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">Tabella 1: </span>Test parameters for nano scratch measurements on regular stent samples</p>								</div>
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					<h3 class="elementor-heading-title elementor-size-default">2. Grooved Stent Samples</h3>				</div>
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									<p data-start="1073" data-end="1296">The SEM image in Fig. 1 shows the cross-section of the stent sample. The stent features a groove with a depth of approximately 30 µm. The polymer coating, with a thickness of 10.8 µm, is located at the bottom of the groove.</p><p data-start="1298" data-end="1497">Standard 60° conical diamond tips are not sharp enough to reach the bottom of the groove without contacting the sidewalls. Therefore, a sharper 40° conical diamond tip is used in this study (Fig. 2).</p><p data-start="1499" data-end="1582">Nano scratch measurements are performed using the parameters summarized in Table 2.</p>								</div>
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<table class="measurement-table">
<thead>
<tr>
<th>Parameter</th>
<th>Value</th>
</tr>
</thead>
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<td>Load type</td>
<td>Progressivo</td>
</tr>
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<td>Initial load</td>
<td>0.1 mN</td>
</tr>
<tr>
<td>Final load</td>
<td>300 mN</td>
</tr>
<tr>
<td>Tasso di carico</td>
<td>300 mN/min</td>
</tr>
<tr>
<td>Scratch length</td>
<td>0.25 mm</td>
</tr>
<tr>
<td>Scratch speed</td>
<td>0.25 mm/min</td>
</tr>
<tr>
<td>Indenter geometry</td>
<td>40° cone</td>
</tr>
<tr>
<td>Indenter material (tip)</td>
<td>Diamante</td>
</tr>
<tr>
<td>Raggio della punta del penetratore</td>
<td>5 µm</td>
</tr>
</tbody>
</table>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">Table 2: </span>Test parameters for nano scratch measurements on grooved stent samples</p>								</div>
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															<img loading="lazy" decoding="async" width="932" height="1042" src="https://nanovea.com/wp-content/uploads/2026/03/stent-groove-coating-cross-section-sem-adhesion-analysis.jpg" class="attachment-full size-full wp-image-26288" alt="stent groove cross section polymer coating thickness adhesion analysis nano scratch testing" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">Fig. 1: </span>SEM cross-section of a grooved stent showing polymer coating located at the bottom of the groove, highlighting the challenge of coating adhesion measurement in recessed geometries.</p>								</div>
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															<img decoding="async" src="https://nanovea.com/wp-content/uploads/2026/03/nano-scratch-diamond-tip-40-degree-stent-groove-testing.svg" class="attachment-full size-full wp-image-26289" alt="nano scratch diamond tip 40 degree stent groove coating adhesion testing schematic" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">Fig. 2: </span>Schematic of a 40° conical diamond tip designed for nano scratch testing inside stent grooves, enabling accurate adhesion measurement without sidewall interference.</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">Risultati e discussione</h2>				</div>
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				<section class="elementor-section elementor-top-section elementor-element elementor-element-55f91f5 elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="55f91f5" data-element_type="section">
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									<p data-start="548" data-end="837">The stent mesh has a diameter of approximately 100 μm, comparable to a human hair. Precise positioning is therefore critical to ensure the scratch test is performed at the center of the stent mesh. The NANOVEA Mechanical Tester provides X–Y positioning accuracy down to 0.25 μm, enabling accurate test placement under the integrated optical microscope.</p>								</div>
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					<h3 class="elementor-heading-title elementor-size-default">1. Regular Stent Samples</h3>				</div>
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									<p data-start="641" data-end="857">Nano scratch testing is performed with a progressively increasing load up to 300 mN. The full scratch track on the stent is shown in Fig. 3a, while failure behavior at different stages is presented in Fig. 3b and 3c.</p><p data-start="859" data-end="893">Two critical loads are identified:</p><ul data-start="894" data-end="1061"><li data-section-id="14iz9qw" data-start="894" data-end="972">Lc1: the load at which the first visible damage appears on the coating</li><li data-section-id="1mmzt6b" data-start="973" data-end="1061">Lc2: the load at which the coating is fully removed and the substrate is exposed</li></ul><p data-start="1063" data-end="1226">The evolution of coefficient of friction (COF) and penetration depth is shown in Fig. 4, providing insight into the progression of coating failure during the test.</p><p data-start="1228" data-end="1499">The first signs of coating damage appear at Lc1 ≈ 14.5 mN. As the applied load increases, the diamond tip progressively penetrates the polymer coating, resulting in a wider and deeper scratch track. During this phase, the COF increases from approximately 0.05 to 0.7.</p><p data-start="1501" data-end="1756">At Lc2 ≈ 78.1 mN, the coating is fully delaminated from the metal substrate. Beyond this point, as the load continues to increase, both COF and penetration depth remain relatively stable due to the mechanical support of the underlying metal substrate.</p>								</div>
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				<section class="elementor-section elementor-top-section elementor-element elementor-element-23d3399 elementor-reverse-mobile elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="23d3399" data-element_type="section">
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															<img loading="lazy" decoding="async" width="1200" height="404" src="https://nanovea.com/wp-content/uploads/2026/03/stent-coating-nano-scratch-track-full-progressive-load.jpg" class="attachment-full size-full wp-image-26293" alt="nano scratch track stent coating progressive load adhesion testing" />															</div>
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									<p>(a) Full Scratch Track</p>								</div>
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															<img loading="lazy" decoding="async" width="897" height="670" src="https://nanovea.com/wp-content/uploads/2026/03/stent-coating-initial-failure-lc1-nano-scratch-14-5mn.jpg" class="attachment-large size-large wp-image-26294" alt="" />															</div>
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									<p>(b) <strong data-start="599" data-end="616">Lc1 ≈ 14.5 mN</strong></p>								</div>
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															<img loading="lazy" decoding="async" width="897" height="670" src="https://nanovea.com/wp-content/uploads/2026/03/stent-coating-delamination-lc2-nano-scratch-78-1mn.jpg" class="attachment-large size-large wp-image-26295" alt="stent coating delamination lc2 nano scratch 78.1 mN adhesion testing" />															</div>
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									<p>(c) <strong data-start="625" data-end="642">Lc2 ≈ 78.1 mN</strong></p>								</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">Fig. 3: </span>Nano scratch track on a stent coating under progressively increasing load, showing (a) full scratch path, (b) initial coating failure at Lc1 ≈ 14.5 mN, and (c) complete coating delamination at Lc2 ≈ 78.1 mN.</p>								</div>
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				<section class="elementor-section elementor-top-section elementor-element elementor-element-c9cfe8c elementor-reverse-mobile elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="c9cfe8c" data-element_type="section">
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															<img loading="lazy" decoding="async" width="1751" height="725" src="https://nanovea.com/wp-content/uploads/2026/03/nano-scratch-cof-depth-stent-coating-failure-analysis.jpg" class="attachment-full size-full wp-image-26296" alt="nano scratch testing stent coating coefficient of friction depth progression adhesion failure" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">Fig. 4: </span>Evolution of coefficient of friction (COF) and penetration depth during nano scratch testing of a stent coating under progressively increasing load, showing the progression of coating failure and transition to substrate support.</p>								</div>
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				<div class="elementor-element elementor-element-f9e723a elementor-widget elementor-widget-text-editor" data-id="f9e723a" data-element_type="widget" data-widget_type="text-editor.default">
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									<p data-start="246" data-end="537">Failures during nano scratch testing up to a maximum load of 300 mN occur at critical loads below 100 mN. To enable a more quantitative comparison of coating performance, additional tests are performed with a maximum load of 100 mN on two stent samples, referred to as Sample 1 and Sample 2.</p><p data-start="539" data-end="794">Fig. 5 compares the scratch tracks of Sample 1 and Sample 2 after nano scratch testing. Sample 1 exhibits the first sign of coating damage at a critical load of Lc1 ≈ 13.2 mN, while Sample 2 shows initial failure at a higher load of Lc1 ≈ 21.1 mN.</p><p data-start="796" data-end="1002">Coating delamination occurs at 62.5 mN for Sample 1. In contrast, the coating on Sample 2 remains intact throughout the test, continuing to protect the metal substrate under the same loading conditions.</p><p data-start="1004" data-end="1350">This behavior is further reflected in the evolution of coefficient of friction (COF) and penetration depth, as shown in Fig. 6. When the diamond tip penetrates through the coating and contacts the metal substrate in Sample 1, the COF reaches a peak while the penetration depth decreases due to the increased stiffness of the underlying substrate.</p>								</div>
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															<img loading="lazy" decoding="async" width="1797" height="288" src="https://nanovea.com/wp-content/uploads/2026/03/stent-coating-sample1-early-failure-nano-scratch.jpg" class="attachment-full size-full wp-image-26297" alt="stent coating sample 1 early failure nano scratch track delamination adhesion testing" />															</div>
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									<p>(a) Sample 1 – Early Coating Failure</p>								</div>
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															<img loading="lazy" decoding="async" width="1797" height="288" src="https://nanovea.com/wp-content/uploads/2026/03/stent-coating-sample2-high-adhesion-nano-scratch.jpg" class="attachment-full size-full wp-image-26298" alt="stent coating sample 2 high adhesion nano scratch track minimal damage testing" />															</div>
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									<p>(b) Sample 2 – Improved Coating Integrity</p>								</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">Fig. 5: </span>Comparison of nano scratch tracks for two stent coatings, showing (a) early coating failure and delamination in Sample 1, and (b) improved coating integrity in Sample 2 under the same loading conditions.</p>								</div>
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															<img loading="lazy" decoding="async" width="1500" height="913" src="https://nanovea.com/wp-content/uploads/2026/03/nano-scratch-cof-depth-comparison-stent-coating-adhesion.jpg" class="attachment-full size-full wp-image-26299" alt="nano scratch testing stent coating COF depth comparison sample 1 sample 2 adhesion performance" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">Fig. 6: </span>Comparison of coefficient of friction (COF) and penetration depth for Sample 1 and Sample 2 during nano scratch testing, showing earlier substrate contact and higher friction response in Sample 1, indicating weaker coating adhesion.</p>								</div>
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				<section class="elementor-section elementor-top-section elementor-element elementor-element-f64c74c elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="f64c74c" data-element_type="section">
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					<h3 class="elementor-heading-title elementor-size-default">2. Grooved Stent Samples</h3>				</div>
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									<p data-start="279" data-end="601">As shown in Fig. 1 and Fig. 7, the grooved stent mesh has a diameter of approximately 90 μm, comparable to a human hair. The groove has a width of ~50 μm and a depth of 30 μm. This geometry presents a significant challenge for nano scratch testing, particularly for evaluating coating adhesion at the bottom of the groove.</p><p data-start="603" data-end="847">Precise positioning is critical to locate the scratch test within the groove. The nano scratch test is performed with a progressively increasing load up to 300 mN. The full scratch tracks of grooved stent Samples 3 and 4 are compared in Fig. 7.</p><p data-start="849" data-end="1108">The critical load Lc is defined as the load at which the coating fails and the substrate becomes exposed. The evolution of normal load and penetration depth, shown in Fig. 8, provides further insight into the progression of coating failure during testing.</p><p data-start="1110" data-end="1331">As the applied load increases, the diamond tip progressively penetrates the polymer coating, resulting in a deeper scratch track. When the critical load Lc is reached, the coating delaminates from the metal substrate.</p><p data-start="1333" data-end="1516">Sample 3 exhibits coating failure at Lc ≈ 126 mN, while Sample 4 fails at a higher load of Lc ≈ 173 mN. This difference indicates stronger adhesion of the coating in Sample 4.</p><p data-start="1518" data-end="1773">The measured critical loads enable quantitative comparison of coating adhesion performance. Under the same testing conditions, the coating on Sample 4 demonstrates higher resistance to delamination, making it the better-performing candidate in this study.</p>								</div>
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															<img loading="lazy" decoding="async" width="1794" height="966" src="https://nanovea.com/wp-content/uploads/2026/03/stent-groove-coating-failure-sample3-nano-scratch-126mn.jpg" class="attachment-full size-full wp-image-26300" alt="stent groove coating failure sample 3 nano scratch 126 mN adhesion testing" />															</div>
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									<p>(c) Sample 3 – Coating Failure in Groove (Lc ≈ 126 mN)</p>								</div>
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															<img loading="lazy" decoding="async" width="1794" height="966" src="https://nanovea.com/wp-content/uploads/2026/03/stent-groove-coating-high-adhesion-sample4-nano-scratch-173mn.jpg" class="attachment-full size-full wp-image-26301" alt="stent groove coating adhesion sample 4 nano scratch 173 mN minimal failure testing" />															</div>
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									<p>(d) Sample 4 – Higher Adhesion in Groove (Lc ≈ 173 mN)</p>								</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">Fig. 7: </span>Nano scratch tracks inside stent grooves for Samples 3 and 4, showing (c) coating failure at Lc ≈ 126 mN in Sample 3 and (d) higher adhesion with delayed failure at Lc ≈ 173 mN in Sample 4.</p>								</div>
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															<img loading="lazy" decoding="async" width="1500" height="680" src="https://nanovea.com/wp-content/uploads/2026/03/nano-scratch-load-depth-sample3-grooved-stent-failure.jpg" class="attachment-full size-full wp-image-26302" alt="" />															</div>
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									<p>(a) Sample 3 – Earlier Coating Failure (Lc ≈ 126 mN)</p>								</div>
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															<img loading="lazy" decoding="async" width="1500" height="680" src="https://nanovea.com/wp-content/uploads/2026/03/nano-scratch-load-depth-sample4-grooved-stent-high-adhesion.jpg" class="attachment-full size-full wp-image-26303" alt="" />															</div>
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									<p data-start="319" data-end="387">(b) Sample 4 – Delayed Failure and Higher Adhesion (Lc ≈ 173 mN)</p>								</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">Fig. 8: </span>Evolution of normal load and penetration depth during nano scratch testing inside stent grooves for Samples 3 and 4, showing earlier coating failure in Sample 3 and delayed failure at higher load in Sample 4. The vertical green line indicates the critical load (Lc) where coating delamination occurs.</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">Conclusione</h2>				</div>
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									<p data-start="245" data-end="468">This study demonstrates the ability of the NANOVEA Mechanical Tester to quantitatively evaluate the cohesive and adhesive strength of polymer coatings on both regular and grooved stent geometries using nano scratch testing.</p><p data-start="470" data-end="825">The recessed geometry of the stent grooves, approximately 50 μm wide and 30 μm deep, presents a significant challenge for coating adhesion measurement. The high X–Y positioning accuracy of 0.25 μm enables precise placement of the scratch test within these confined regions, allowing direct evaluation of coating performance where failure is most critical.</p><p data-start="827" data-end="1124">By applying a controlled, progressively increasing load, critical loads associated with coating failure can be identified and compared across samples. This approach enables reliable differentiation of coating adhesion performance and interfacial integrity, even on small, complex stent structures.</p>								</div>
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				<section class="elementor-section elementor-top-section elementor-element elementor-element-cee3530 elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="cee3530" data-element_type="section">
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					<h2 class="elementor-heading-title elementor-size-default">Riferimenti</h2>				</div>
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									<p data-start="414" data-end="843"><em>[I] http://www.nhlbi.nih.gov/health/health-topics/topics/stents</em><br /><em>[II] http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1405-99402006000300008 </em></p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">Frequently Asked Questions About Stent Coating Adhesion Testing</h2>				</div>
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					<h3 class="elementor-heading-title elementor-size-default">What is stent coating adhesion testing?</h3>				</div>
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									<p data-start="168" data-end="494">Stent coating adhesion testing evaluates how strongly a polymer coating is bonded to the metal substrate of a stent. Techniques such as nano scratch testing quantify the load at which coating damage and delamination occur, providing measurable indicators of adhesion strength.</p>								</div>
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				<div class="elementor-element elementor-element-cbcfaa4 elementor-widget elementor-widget-heading" data-id="cbcfaa4" data-element_type="widget" data-widget_type="heading.default">
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					<h3 class="elementor-heading-title elementor-size-default">What is critical load (Lc) in nano scratch testing?</h3>				</div>
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									<p data-start="658" data-end="746">Critical load (Lc) is the applied load at which a coating fails during a scratch test.</p><ul data-start="747" data-end="890"><li data-section-id="bhdxv4" data-start="747" data-end="813">Lc1 corresponds to the first visible damage in the coating</li><li data-section-id="4photk" data-start="814" data-end="890">Lc2 indicates complete coating removal and exposure of the substrate</li></ul><p data-start="892" data-end="967">These values are used to quantify and compare coating adhesion performance.</p>								</div>
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					<h3 class="elementor-heading-title elementor-size-default">Why is coating adhesion important in drug-eluting stents?</h3>				</div>
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									<p data-start="168" data-end="494">Coating adhesion directly affects the reliability of drug-eluting stents. Poor adhesion can lead to coating delamination, which may compromise controlled drug release and increase the risk of device failure.</p>								</div>
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					<h3 class="elementor-heading-title elementor-size-default">How do you measure coating adhesion inside stent grooves?</h3>				</div>
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									<p data-start="168" data-end="494">Measuring adhesion inside stent grooves requires high positioning accuracy and appropriate indenter geometry. Nano scratch testing with sharp diamond tips allows access to recessed coating regions, enabling direct evaluation of adhesion within complex stent geometries.</p>								</div>
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					<h3 class="elementor-heading-title elementor-size-default">What does coefficient of friction (COF) indicate in scratch testing?</h3>				</div>
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									<p data-start="168" data-end="494">The coefficient of friction (COF) reflects changes in surface interaction during the scratch test. A sudden increase in COF often indicates coating failure and contact between the indenter and the underlying metal substrate.</p>								</div>
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					<h3 class="elementor-heading-title elementor-size-default">How can nano scratch testing compare different coating formulations?</h3>				</div>
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									<p data-start="168" data-end="494">Nano scratch testing enables direct comparison of coatings by measuring critical loads under controlled conditions. Higher critical loads indicate stronger adhesion and improved resistance to delamination, allowing selection of better-performing coating systems.</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">Need Reliable Stent Coating Adhesion Testing?</h2>				</div>
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				</div><p>The post <a href="https://nanovea.com/it/stent-coating-adhesion-testing-nano-scratch/">Stent Coating Adhesion and Delamination Analysis Using Nano Scratch Testing</a> appeared first on <a href="https://nanovea.com/it">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
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		<title>Dental Surface Roughness Measurement &#038; 3D Tooth Topography</title>
		<link>https://nanovea.com/it/dental-surface-roughness-measurement-3d-tooth-topography/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=dental-surface-roughness-measurement-3d-tooth-topography</link>
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		<dc:creator><![CDATA[Andrew Shore]]></dc:creator>
		<pubdate>Thu, 05 Mar 2026 21:02:01 +0000</pubdate>
				<category><![CDATA[Application Notes]]></category>
		<category><![CDATA[Laboratory Testing]]></category>
		<category><![CDATA[Profilometry | Geometry and Shape]]></category>
		<category><![CDATA[Profilometry | Roughness and Finish]]></category>
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		<guid ispermalink="false">https://nanovea.com/?p=26196</guid>

					<description><![CDATA[<p>Application Note &#124; Dental Surface Characterization Dental Surface Roughness Measurement and Full 3D Tooth Topography Surface Roughness Analysis Using Non-Contact Optical Profilometry Request Surface Analysis Ask an Expert Live Prepared by Walter Alabiso, PhD; Davide Morrone, MPhys; Andrew Shore, MA Introduction The ability to accurately characterize tooth surfaces, including micro-roughness and 3D surface topography at [&#8230;]</p>
<p>The post <a href="https://nanovea.com/it/dental-surface-roughness-measurement-3d-tooth-topography/">Dental Surface Roughness Measurement &#038; 3D Tooth Topography</a> appeared first on <a href="https://nanovea.com/it">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
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										<content:encoded><![CDATA[<div data-elementor-type="wp-post" data-elementor-id="26196" class="elementor elementor-26196" data-elementor-post-type="post">
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									<p>Application Note | Dental Surface Characterization</p>								</div>
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					<h1 class="elementor-heading-title elementor-size-default">Dental Surface Roughness Measurement and Full 3D Tooth Topography</h1>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">Surface Roughness Analysis Using Non-Contact Optical Profilometry</h2>				</div>
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															<img loading="lazy" decoding="async" width="1024" height="307" src="https://nanovea.com/wp-content/uploads/2026/03/dental-surface-roughness-measurement-3d-optical-profilometer.jpg" class="attachment-large size-large wp-image-26092" alt="Dental surface roughness measurement and 3D molar reconstruction using optical profilometry" />															</div>
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					<p class="elementor-heading-title elementor-size-default">Preparato da</p>				</div>
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					<p class="elementor-heading-title elementor-size-default">Walter Alabiso, PhD; Davide Morrone, MPhys; Andrew Shore, MA</p>				</div>
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				<section class="elementor-section elementor-top-section elementor-element elementor-element-b5911d1 elementor-section-content-middle elementor-reverse-mobile elementor-reverse-tablet elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="b5911d1" data-element_type="section" data-settings="{&quot;background_background&quot;:&quot;classic&quot;}">
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					<h2 class="elementor-heading-title elementor-size-default">Introduzione</h2>				</div>
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									<p data-start="836" data-end="1458">The ability to accurately characterize tooth surfaces, including micro-roughness and 3D surface topography at the nanometer scale, enables advanced research and applications in orthodontics and dental materials science. Non-contact optical profilometry provides a precise method for measuring dental surface roughness and analyzing tooth surface morphology without damaging delicate structures. These measurements support the development of composite dental materials that replicate the natural surface roughness of enamel, as well as the design and fabrication of patient-specific dental casts and restorative components.</p><p data-start="1460" data-end="1982">Low surface roughness plays a primary role in limiting bacterial adhesion and plaque formation, thereby reducing the risk of cavities. An increase in average roughness (Ra) above 2 µm leads to a steep increase in biofilm formation in vivo.¹ An Ra of 0.2 µm is considered the threshold value below which no further reduction in bacterial adhesion can be expected.²</p><p data-start="1984" data-end="2182">Reconstruction of the tooth’s 3D surface topography enables the fabrication of dental casts, which are essential for accurate diagnosis, treatment planning, and the fabrication of dental appliances.</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">Non-Contact Optical Profilometry for Dental Surface Analysis</h2>				</div>
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									<p data-start="232" data-end="713">The present study illustrates the potential of NANOVEA’s high-precision non-contact optical profilometers for dental surface roughness measurement and 3D tooth topography analysis. Chromatic Light technology offers significant advantages over classical touch probe techniques. It acquires data points from deep crevices and complex geometries without introducing measurement errors or artifacts caused by local plastic deformation and without requiring extensive data manipulation.</p><p data-start="715" data-end="1135">Compared to focus variation systems, single-point optical sensing provides superior lateral and height accuracy, with X/Y resolution below 0.5 µm, maximum vertical resolution of 1.9 nm, and the ability to measure surface angles up to 87°. The technique is effective on transparent, opaque, specular, diffusive, polished, and rough dental surfaces, making it well suited for comprehensive dental surface characterization.</p>								</div>
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									<p>ℹ️<em data-start="1410" data-end="1468"> Per saperne di più <a href="https://nanovea.com/surface-profiling-lab-services/">non-contact optical profilometry and surface roughness measurement services</a>.</em></p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">Measurement Method</h2>				</div>
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									<p data-start="313" data-end="697">In questa applicazione, il <a href="https://nanovea.com/instruments/jr25/" target="_blank" rel="noopener">NANOVEA JR25 Non-Contact Optical Profiler</a> was used to analyze the surface roughness and 3D surface topography of an adult human molar previously affected by tooth decay. The side of the tooth was scanned using a PS2–MG140 single-point optical sensor to measure surface roughness parameters over a defined region of interest and along multiple line profiles.</p><p data-start="699" data-end="888">The crown of the tooth was then scanned and reconstructed using a PS5–MG35 single-point optical sensor, which is suited for larger-area acquisition and full 3D tooth topography measurement.</p>								</div>
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				<section class="elementor-section elementor-inner-section elementor-element elementor-element-d556682 elementor-reverse-mobile elementor-section-full_width elementor-reverse-tablet elementor-section-height-default elementor-section-height-default" data-id="d556682" data-element_type="section">
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									<p style="text-align: center; font-size: 20pt; color: black;"><br />NANOVEA <span style="font-size: 20pt; color: #1b96cf;">JR25 Portable</span><br />Profilometro ottico</p>								</div>
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							<img loading="lazy" decoding="async" width="300" height="264" src="https://nanovea.com/wp-content/uploads/2026/01/nanovea-jr25-portable-optical-profilometer.jpg" class="elementor-animation-grow attachment-medium size-medium wp-image-25699" alt="NANOVEA JR25 portable optical profilometer for non-contact surface measurement" />								</a>
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					<h2 class="elementor-heading-title elementor-size-default">Surface Measurement Using NANOVEA Optical Profilometer</h2>				</div>
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									<p data-start="914" data-end="1026">Surface roughness measurements were performed on the lateral side of the molar crown, followed by full 3D reconstruction of the crown surface. Separate single-point optical sensors were used to optimize measurement accuracy for both localized roughness analysis and large-area surface topography acquisition.</p>								</div>
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									<p>PS2 – MG140</p>								</div>
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															<img loading="lazy" decoding="async" width="351" height="465" src="https://nanovea.com/wp-content/uploads/2026/03/optical-profilometer-dental-surface-roughness-measurement.jpg" class="attachment-large size-large wp-image-26123" alt="" />															</div>
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									<p>Surface roughness analysis by area and parallel line profiles on the side of the tooth’s crown.</p>								</div>
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									<p>PS5 – MG35</p>								</div>
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															<img loading="lazy" decoding="async" width="351" height="465" src="https://nanovea.com/wp-content/uploads/2026/03/3d-tooth-topography-measurement-optical-profilometer.jpg" class="attachment-large size-large wp-image-26122" alt="" />															</div>
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									<p>Full 3D surface reconstruction of the tooth’s crown.</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">Parametri di misura</h2>				</div>
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									<p data-start="1228" data-end="1620">The following measurement parameters were used for localized surface roughness analysis and full 3D surface reconstruction of the molar crown using NANOVEA single-point optical sensors.</p>								</div>
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<table class="measurement-table">
<thead>
<tr>
<th>Parameter</th>
<th>Roughness Analysis (Area)</th>
<th>Roughness Analysis (Profiles)</th>
<th>Full 3D Reconstruction</th>
</tr>
</thead>
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<td>Optical Pen</td>
<td>PS2-MG140</td>
<td>PS2-MG140</td>
<td>PS5-MG35</td>
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<tr>
<td>Z-Range [µm]</td>
<td>300</td>
<td>300</td>
<td>10000</td>
</tr>
<tr>
<td>X-Distance [mm]</td>
<td>2.00</td>
<td>3.00</td>
<td>7.50</td>
</tr>
<tr>
<td>X-Step Size [µm]</td>
<td>1.70</td>
<td>1.70</td>
<td>10.00</td>
</tr>
<tr>
<td>Y-Distance [mm]</td>
<td>2.00</td>
<td>1.00</td>
<td>7.00</td>
</tr>
<tr>
<td>Y-Step Size [µm]</td>
<td>1.70</td>
<td>100.00</td>
<td>10.00</td>
</tr>
<tr>
<td>Averaging (Avg)</td>
<td>1</td>
<td>1</td>
<td>1</td>
</tr>
<tr>
<td>Measurement Type</td>
<td>Direct</td>
<td>Direct</td>
<td>Direct</td>
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<td>Acquisition Mode</td>
<td>Single Frequency</td>
<td>Single Frequency</td>
<td>Dual Frequency</td>
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<tr>
<td>Acquisition Rate [Hz]</td>
<td>200</td>
<td>200</td>
<td>100–400</td>
</tr>
<tr>
<td>Light Intensity [%]</td>
<td>100</td>
<td>100</td>
<td>100</td>
</tr>
</tbody>
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					<h2 class="elementor-heading-title elementor-size-default">Optical Profilometry Results</h2>				</div>
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				<section class="elementor-section elementor-top-section elementor-element elementor-element-55f91f5 elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="55f91f5" data-element_type="section">
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					<h3 class="elementor-heading-title elementor-size-default">Surface Roughness Analysis (Area)</h3>				</div>
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									<p data-start="548" data-end="837">The PS2 single-point optical sensor was used to investigate fine surface features on the side of the tooth. The image below shows a false-color 2D surface map of the scanned region obtained by non-contact optical profilometry.</p>								</div>
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															<img loading="lazy" decoding="async" width="1162" height="906" src="https://nanovea.com/wp-content/uploads/2026/03/tooth-scanned-region-2d-height-map.jpg" class="attachment-full size-full wp-image-26127" alt="False-color 2D height map of scanned tooth surface region" />															</div>
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									<p data-start="548" data-end="837">A least-squares degree-8 polynomial form removal was applied to isolate the surface roughness component. The roughness filters S-Gaussian 2.5 µm and L-Gaussian 0.8 mm were then applied according to ISO 25178. The resulting filtered surface and corresponding roughness parameters are presented below.</p>								</div>
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				<section class="elementor-section elementor-inner-section elementor-element elementor-element-e80acb9 elementor-reverse-mobile elementor-section-full_width elementor-reverse-tablet elementor-section-height-default elementor-section-height-default" data-id="e80acb9" data-element_type="section">
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															<img loading="lazy" decoding="async" width="950" height="748" src="https://nanovea.com/wp-content/uploads/2026/03/tooth-surface-roughness-iso-25178-filtered-map.jpg" class="attachment-full size-full wp-image-26133" alt="" />															</div>
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									<div class="iso-roughness-table-wrapper"><table class="iso-roughness-table"><tbody><!-- Filter Settings --><tr class="section-header"><td colspan="4">ISO 25178 – Roughness (S-L)</td></tr><tr><td colspan="4"><strong>S-filter (λs):</strong> Gaussian, 2.5 µm</td></tr><tr><td colspan="4"><strong>F:</strong> [Workflow] Form removed (LS-poly 8)</td></tr><tr><td colspan="4"><strong>L-filter (λc):</strong> Gaussian, 0.8 mm</td></tr><!-- Height Parameters Header --><tr class="section-header"><td colspan="4">Height Parameters</td></tr><!-- Height Parameter Rows --><tr><td class="param-code">Sq</td><td>2.433</td><td>µm</td><td>Altezza quadratica media</td></tr><tr><td class="param-code">Ssk</td><td>-0.102</td><td> </td><td>Skewness</td></tr><tr><td class="param-code">Cod</td><td>3.715</td><td> </td><td>Curtosi</td></tr><tr><td class="param-code">Sp</td><td>18.861</td><td>µm</td><td>Altezza massima del picco</td></tr><tr><td class="param-code">Sv</td><td>16.553</td><td>µm</td><td>Maximum pit depth</td></tr><tr><td class="param-code">Sz</td><td>35.414</td><td>µm</td><td>Altezza massima</td></tr><tr><td class="param-code">Sa</td><td>1.888</td><td>µm</td><td>Altezza media aritmetica</td></tr></tbody></table></div>								</div>
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									<p data-start="117" data-end="216">The average surface roughness Sa is 1.888 µm, while the peak-to-valley height Sz reaches 35.414 µm.</p><p data-start="218" data-end="295">A 3D surface rendering of the filtered area is shown below for visualization.</p>								</div>
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															<img loading="lazy" decoding="async" width="1200" height="892" src="https://nanovea.com/wp-content/uploads/2026/03/tooth-surface-roughness-3d-render-iso-filtered.jpg" class="attachment-full size-full wp-image-26129" alt="3D rendering of ISO 25178 filtered tooth surface roughness" />															</div>
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				<section class="elementor-section elementor-top-section elementor-element elementor-element-af84ca9 elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="af84ca9" data-element_type="section">
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					<h3 class="elementor-heading-title elementor-size-default">Roughness Analysis (Profiles)</h3>				</div>
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									<p data-start="548" data-end="837">Surface roughness profiles were measured using a series of 11 parallel line scans along the X direction on the side of the tooth. The false-color 2D surface map of the raw scan is shown below.</p>								</div>
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															<img loading="lazy" decoding="async" width="1298" height="517" src="https://nanovea.com/wp-content/uploads/2026/03/tooth-line-roughness-raw-scan-2d-map.jpg" class="attachment-full size-full wp-image-26143" alt="False-color 2D raw scan of tooth surface for line roughness profiles" />															</div>
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									<p data-start="548" data-end="837">The surface form was removed using a least-squares 8-degree polynomial prior to applying the metrological filters, leaving the residual surface shown below.</p>								</div>
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															<img loading="lazy" decoding="async" width="1298" height="517" src="https://nanovea.com/wp-content/uploads/2026/03/tooth-line-roughness-residual-after-form-removal.jpg" class="attachment-full size-full wp-image-26144" alt="" />															</div>
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									<p data-start="548" data-end="837">A statistical analysis of the measured surface roughness profiles reveals the following line roughness parameters.</p>								</div>
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															<img loading="lazy" decoding="async" width="1670" height="606" src="https://nanovea.com/wp-content/uploads/2026/03/tooth-line-roughness-profile-overlay-analysis.jpg" class="attachment-full size-full wp-image-26148" alt="Overlay of multiple tooth surface roughness profiles for statistical analysis" />															</div>
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									<div class="iso-profile-wrapper"><p><!-- Desktop / wide screens --></p><table class="iso-profile-table iso-profile-desktop"><colgroup> <col class="col-code" /> <col class="col-unit" /> <col class="col-desc" /> <col class="col-num" /> <col class="col-num" /> <col class="col-num" /> <col class="col-num" /> </colgroup><tbody><tr class="iso-profile-section"><td colspan="7">ISO 4287 – Roughness (S-L)</td></tr><tr class="iso-profile-meta"><td colspan="7"><strong>F:</strong> Nessuno</td></tr><tr class="iso-profile-meta"><td colspan="7"><strong>S-filter (λs):</strong> Gaussian, 2.5 µm</td></tr><tr class="iso-profile-meta"><td colspan="7"><strong>L-filter (λc):</strong> Gaussian, 0.8 mm</td></tr><tr class="iso-profile-meta"><td colspan="7"><strong>Evaluation length:</strong> All λc (3)</td></tr><tr class="iso-profile-section"><td colspan="7">Amplitude Parameters – Roughness Profile</td></tr><tr class="iso-profile-header"><th class="center"> </th><th class="center"> </th><th>Description</th><th class="center">Mean</th><th class="center">Std dev</th><th class="center">Min</th><th class="center">Max</th></tr><tr><td class="iso-profile-code">Rp</td><td class="iso-profile-unit">µm</td><td class="iso-profile-desc">Maximum peak height of the roughness profile</td><td class="center">5.683</td><td class="center">0.761</td><td class="center">4.315</td><td class="center">6.610</td></tr><tr><td class="iso-profile-code">Rv</td><td class="iso-profile-unit">µm</td><td class="iso-profile-desc">Maximum valley depth of the roughness profile</td><td class="center">6.242</td><td class="center">1.009</td><td class="center">4.701</td><td class="center">8.438</td></tr><tr><td class="iso-profile-code">Rz</td><td class="iso-profile-unit">µm</td><td class="iso-profile-desc">Maximum height of roughness profile</td><td class="center">11.925</td><td class="center">1.676</td><td class="center">9.123</td><td class="center">15.048</td></tr><tr><td class="iso-profile-code">Ra</td><td class="iso-profile-unit">µm</td><td class="iso-profile-desc">Arithmetic mean deviation of the roughness profile</td><td class="center">2.063</td><td class="center">0.297</td><td class="center">1.710</td><td class="center">2.629</td></tr><tr><td class="iso-profile-code">Rq</td><td class="iso-profile-unit">µm</td><td class="iso-profile-desc">Root-mean-square (RMS) deviation of the roughness profile</td><td class="center">2.523</td><td class="center">0.361</td><td class="center">2.057</td><td class="center">3.175</td></tr></tbody></table><p><!-- Mobile / tablet stacked cards --></p><div class="iso-profile-mobile"><div class="iso-profile-card-head">ISO 4287 – Roughness (S-L)</div><div class="iso-profile-meta-block"><div><strong>F:</strong> Nessuno</div><div><strong>S-filter (λs):</strong> Gaussian, 2.5 µm</div><div><strong>L-filter (λc):</strong> Gaussian, 0.8 mm</div><div><strong>Evaluation length:</strong> All λc (3)</div></div><div class="iso-profile-card-section">Amplitude Parameters – Roughness Profile</div><div class="iso-profile-card"><div class="iso-profile-card-title"><span class="badge">Rp</span><span class="unit">µm</span></div><div class="desc">Maximum peak height of the roughness profile</div><div class="grid"><div>Mean<strong>5.683</strong></div><div>Std dev<strong>0.761</strong></div><div>Min<strong>4.315</strong></div><div>Max<strong>6.610</strong></div></div></div><div class="iso-profile-card"><div class="iso-profile-card-title"><span class="badge">Rv</span><span class="unit">µm</span></div><div class="desc">Maximum valley depth of the roughness profile</div><div class="grid"><div>Mean<strong>6.242</strong></div><div>Std dev<strong>1.009</strong></div><div>Min<strong>4.701</strong></div><div>Max<strong>8.438</strong></div></div></div><div class="iso-profile-card"><div class="iso-profile-card-title"><span class="badge">Rz</span><span class="unit">µm</span></div><div class="desc">Maximum height of roughness profile</div><div class="grid"><div>Mean<strong>11.925</strong></div><div>Std dev<strong>1.676</strong></div><div>Min<strong>9.123</strong></div><div>Max<strong>15.048</strong></div></div></div><div class="iso-profile-card"><div class="iso-profile-card-title"><span class="badge">Ra</span><span class="unit">µm</span></div><div class="desc">Arithmetic mean deviation of the roughness profile</div><div class="grid"><div>Mean<strong>2.063</strong></div><div>Std dev<strong>0.297</strong></div><div>Min<strong>1.710</strong></div><div>Max<strong>2.629</strong></div></div></div><div class="iso-profile-card"><div class="iso-profile-card-title"><span class="badge">Rq</span><span class="unit">µm</span></div><div class="desc">Root-mean-square (RMS) deviation of the roughness profile</div><div class="grid"><div>Mean<strong>2.523</strong></div><div>Std dev<strong>0.361</strong></div><div>Min<strong>2.057</strong></div><div>Max<strong>3.175</strong></div></div></div></div></div>								</div>
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									<p data-start="184" data-end="276">The value of Ra is consistent with the Sa value extracted from the surface area measurement.</p><p data-start="278" data-end="659">Different metrological filters can be applied to distinguish between macroscopic waviness and microscopic surface roughness. For example, a coarser filter cut-off, such as the 8 mm cut-off used with the Robust Gaussian order-2 filter, produces a smoother waviness profile (red) that is less sensitive to sharp local variations and follows the original surface profile more loosely.</p>								</div>
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															<img loading="lazy" decoding="async" width="1855" height="800" src="https://nanovea.com/wp-content/uploads/2026/03/tooth-surface-waviness-vs-roughness-filter-comparison.jpg" class="attachment-full size-full wp-image-26158" alt="Comparison of waviness and roughness profiles on tooth surface using coarse filter" />															</div>
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									<p data-start="548" data-end="837">Alternatively, a finer cut-off (e.g., 0.08 mm) enables the analysis of micro-roughness by removing the waviness component that follows the original profile at a larger scale, leaving the finer surface roughness features of the tooth visible.</p>								</div>
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															<img loading="lazy" decoding="async" width="1853" height="790" src="https://nanovea.com/wp-content/uploads/2026/03/tooth-surface-microroughness-profile-filtering.jpg" class="attachment-full size-full wp-image-26159" alt="" />															</div>
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									<p data-start="548" data-end="837">The microroughness analysis obtained using a 0.08 mm L-Gaussian filter is presented below.</p>								</div>
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															<img loading="lazy" decoding="async" width="1200" height="431" src="https://nanovea.com/wp-content/uploads/2026/03/tooth-surface-microroughness-final-profile.jpg" class="attachment-full size-full wp-image-26160" alt="Final microroughness profile of tooth surface after filtering" />															</div>
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									<div class="iso-profile-wrapper"><p><!-- Desktop / wide screens --></p><table class="iso-profile-table iso-profile-desktop"><colgroup> <col class="col-code" /> <col class="col-unit" /> <col class="col-desc" /> <col class="col-num" /> <col class="col-num" /> <col class="col-num" /> <col class="col-num" /> </colgroup><tbody><tr class="iso-profile-section"><td colspan="7">ISO 4287 – Roughness (S-L)</td></tr><tr class="iso-profile-meta"><td colspan="7"><strong>F:</strong> Nessuno</td></tr><tr class="iso-profile-meta"><td colspan="7"><strong>S-filter (λs):</strong> Gaussian, 2.5 µm</td></tr><tr class="iso-profile-meta"><td colspan="7"><strong>L-filter (λc):</strong> Gaussian, 0.08 mm</td></tr><tr class="iso-profile-meta"><td colspan="7"><strong>Evaluation length:</strong> All λc (37)</td></tr><tr class="iso-profile-section"><td colspan="7">Amplitude Parameters – Roughness Profile</td></tr><tr class="iso-profile-header"><th class="center"> </th><th class="center"> </th><th>Description</th><th class="center">Mean</th><th class="center">Std dev</th><th class="center">Min</th><th class="center">Max</th></tr><tr><td class="iso-profile-code">Rp</td><td class="iso-profile-unit">µm</td><td class="iso-profile-desc">Maximum peak height of the roughness profile</td><td class="center">1.582</td><td class="center">0.122</td><td class="center">1.342</td><td class="center">1.748</td></tr><tr><td class="iso-profile-code">Rv</td><td class="iso-profile-unit">µm</td><td class="iso-profile-desc">Maximum valley depth of the roughness profile</td><td class="center">1.466</td><td class="center">0.119</td><td class="center">1.254</td><td class="center">1.661</td></tr><tr><td class="iso-profile-code">Rz</td><td class="iso-profile-unit">µm</td><td class="iso-profile-desc">Maximum height of roughness profile</td><td class="center">3.049</td><td class="center">0.196</td><td class="center">2.820</td><td class="center">3.409</td></tr><tr><td class="iso-profile-code">Ra</td><td class="iso-profile-unit">µm</td><td class="iso-profile-desc">Arithmetic mean deviation of the roughness profile</td><td class="center">0.495</td><td class="center">0.047</td><td class="center">0.423</td><td class="center">0.597</td></tr><tr><td class="iso-profile-code">Rq</td><td class="iso-profile-unit">µm</td><td class="iso-profile-desc">Root-mean-square (RMS) deviation of the roughness profile</td><td class="center">0.643</td><td class="center">0.056</td><td class="center">0.562</td><td class="center">0.762</td></tr></tbody></table><p><!-- Mobile / tablet stacked cards --></p><div class="iso-profile-mobile"><div class="iso-profile-card-head">ISO 4287 – Roughness (S-L)</div><div class="iso-profile-meta-block"><div><strong>F:</strong> Nessuno</div><div><strong>S-filter (λs):</strong> Gaussian, 2.5 µm</div><div><strong>L-filter (λc):</strong> Gaussian, 0.8 mm</div><div><strong>Evaluation length:</strong> All λc (3)</div></div><div class="iso-profile-card-section">Amplitude Parameters – Roughness Profile</div><div class="iso-profile-card"><div class="iso-profile-card-title"><span class="badge">Rp</span><span class="unit">µm</span></div><div class="desc">Maximum peak height of the roughness profile</div><div class="grid"><div>Mean<strong>5.683</strong></div><div>Std dev<strong>0.761</strong></div><div>Min<strong>4.315</strong></div><div>Max<strong>6.610</strong></div></div></div><div class="iso-profile-card"><div class="iso-profile-card-title"><span class="badge">Rv</span><span class="unit">µm</span></div><div class="desc">Maximum valley depth of the roughness profile</div><div class="grid"><div>Mean<strong>6.242</strong></div><div>Std dev<strong>1.009</strong></div><div>Min<strong>4.701</strong></div><div>Max<strong>8.438</strong></div></div></div><div class="iso-profile-card"><div class="iso-profile-card-title"><span class="badge">Rz</span><span class="unit">µm</span></div><div class="desc">Maximum height of roughness profile</div><div class="grid"><div>Mean<strong>11.925</strong></div><div>Std dev<strong>1.676</strong></div><div>Min<strong>9.123</strong></div><div>Max<strong>15.048</strong></div></div></div><div class="iso-profile-card"><div class="iso-profile-card-title"><span class="badge">Ra</span><span class="unit">µm</span></div><div class="desc">Arithmetic mean deviation of the roughness profile</div><div class="grid"><div>Mean<strong>2.063</strong></div><div>Std dev<strong>0.297</strong></div><div>Min<strong>1.710</strong></div><div>Max<strong>2.629</strong></div></div></div><div class="iso-profile-card"><div class="iso-profile-card-title"><span class="badge">Rq</span><span class="unit">µm</span></div><div class="desc">Root-mean-square (RMS) deviation of the roughness profile</div><div class="grid"><div>Mean<strong>2.523</strong></div><div>Std dev<strong>0.361</strong></div><div>Min<strong>2.057</strong></div><div>Max<strong>3.175</strong></div></div></div></div></div>								</div>
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					<h3 class="elementor-heading-title elementor-size-default">Full 3D Tooth Surface Topography Reconstruction</h3>				</div>
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									<p data-start="548" data-end="837">The extended Z-scan range of the PS5 optical sensor enables high-fidelity scanning of the entire tooth crown surface. The resulting 3D surface topography is shown below.</p>								</div>
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															<img loading="lazy" decoding="async" width="469" height="348" src="https://nanovea.com/wp-content/uploads/2026/03/tooth-crown-surface-topography-3d-optical-profilometry.jpg" class="attachment-full size-full wp-image-26172" alt="False-color surface topography map of full tooth crown measured with optical profilometer" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">2D VIEW: </span>2D surface map of the tooth crown measured with optical profilometry</p>								</div>
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															<img loading="lazy" decoding="async" width="1200" height="930" src="https://nanovea.com/wp-content/uploads/2026/03/molar-crown-3d-surface-reconstruction-profilometer.jpg" class="attachment-full size-full wp-image-26173" alt="3D surface reconstruction of molar crown from optical profilometer scan" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">3D VIEW: </span>High-fidelity 3D rendering of the molar crown surface obtained with optical profilometry</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">Conclusione</h2>				</div>
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									<p data-start="401" data-end="560">In this application, the NANOVEA JR25 Non-Contact Optical Profiler was used to measure the surface roughness and 3D surface topography of an adult human molar.</p><p data-start="562" data-end="922">Both the area scan and the line profile analysis revealed a roughness Rq of approximately 2.5 µm and an Ra of about 1.9–2.0 µm. These values are consistent with results reported in the literature.³ The use of a narrower L-Gaussian filter with an 80 µm cut-off enabled further investigation of micro-roughness, revealing an Rq of 0.643 µm and an Ra of 0.495 µm.</p><p data-start="924" data-end="1270">The full 3D surface topography of the molar crown was reconstructed with high fidelity. The high measurement resolution allows detection of fine surface features and crevices. The resulting surface data can be easily processed and exported as STL files, enabling the design and fabrication of customized dental devices and restorative components.</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">Riferimenti</h2>				</div>
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									<p data-start="414" data-end="843"><em>[1] Shin, B.W., et al. Surface Roughness of Prefabricated Pediatric Zirconia Crowns Following Simulated Toothbrushing. Pediatric Dentistry 44.5 (2022): 363–367.</em><br /><em>[2] Bollen, C.M.L., Paul Lambrechts, and Marc Quirynen. Comparison of surface roughness of oral hard materials to the threshold surface roughness for bacterial plaque retention: A review of the literature. Dental Materials 13.4 (1997): 258–269.</em><br /><em>[3] Suputtamongkol, K., et al. Surface roughness resulting from wear of lithia-disilicate-based posterior crowns. Wear 269.3–4 (2010): 317–322.</em></p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">Frequently Asked Questions About Dental Surface Roughness Measurement</h2>				</div>
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					<h3 class="elementor-heading-title elementor-size-default">What is dental surface roughness measurement?</h3>				</div>
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									<p data-start="168" data-end="494">Dental surface roughness measurement quantifies the microscopic texture of tooth surfaces using parameters such as Ra, Rq, and Sa. Optical profilometers measure these features without contacting the surface, allowing accurate analysis of enamel, restorative materials, and dental crowns.</p>								</div>
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					<h3 class="elementor-heading-title elementor-size-default">Why use optical profilometry to measure tooth roughness?</h3>				</div>
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									<p data-start="168" data-end="494">Optical profilometry provides non-contact surface measurement with nanometer-scale vertical resolution. It captures 2D surface maps and full 3D surface topography of dental structures without damaging soft or polished surfaces.</p>								</div>
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				<div class="elementor-element elementor-element-cf1f839 elementor-widget elementor-widget-heading" data-id="cf1f839" data-element_type="widget" data-widget_type="heading.default">
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					<h3 class="elementor-heading-title elementor-size-default">What roughness parameters are used for dental surface analysis?</h3>				</div>
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									<p data-start="168" data-end="494">Common roughness parameters include Ra (arithmetic mean roughness), Rq (root mean square roughness), Sa (areal roughness), and Sz (maximum surface height). These parameters help evaluate enamel wear, plaque adhesion risk, and the performance of restorative materials.</p>								</div>
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					<h3 class="elementor-heading-title elementor-size-default">Why is surface roughness important in dentistry?</h3>				</div>
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									<p data-start="168" data-end="494">Surface roughness affects plaque retention, wear resistance, and the long-term performance of dental restorations. Controlling micro-roughness can reduce bacterial adhesion and improve the durability of dental materials.</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">Need Reliable Surface Roughness Measurement for Dental Materials?</h2>				</div>
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				</div><p>The post <a href="https://nanovea.com/it/dental-surface-roughness-measurement-3d-tooth-topography/">Dental Surface Roughness Measurement &#038; 3D Tooth Topography</a> appeared first on <a href="https://nanovea.com/it">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
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		<title>Ispezione della superficie di saldatura con un profilometro 3D portatile</title>
		<link>https://nanovea.com/it/ispezione-della-superficie-di-saldatura-con-un-profilometro-3d-portatile/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=weld-surface-inspection-using-a-portable-3d-profilometer</link>
					<comments>https://nanovea.com/it/ispezione-della-superficie-di-saldatura-con-un-profilometro-3d-portatile/#respond</comments>
		
		<dc:creator><![CDATA[nanovea]]></dc:creator>
		<pubdate>Thu, 14 Jul 2022 15:16:39 +0000</pubdate>
				<category><![CDATA[Application Notes]]></category>
		<category><![CDATA[Laboratory Testing]]></category>
		<category><![CDATA[Profilometry | Flatness and Warpage]]></category>
		<category><![CDATA[Profilometry | Geometry and Shape]]></category>
		<category><![CDATA[Profilometry | Roughness and Finish]]></category>
		<category><![CDATA[Profilometry | Volume and Area]]></category>
		<category><![CDATA[Profilometry Testing]]></category>
		<guid ispermalink="false">https://nanovea.com/?p=21138</guid>

					<description><![CDATA[<p>WELd surface inspection using a portable 3d profilometer Prepared by CRAIG LEISING INTRODUCTION It may become critical for a particular weld, typically done by visual inspection, to be investigated with an extreme level of precision. Specific areas of interest for precise analysis include surface cracks, porosity and unfilled craters, regardless of subsequent inspection procedures. Weld [&#8230;]</p>
<p>The post <a href="https://nanovea.com/it/ispezione-della-superficie-di-saldatura-con-un-profilometro-3d-portatile/">Weld Surface Inspection Using a Portable 3D Profilometer</a> appeared first on <a href="https://nanovea.com/it">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
]]></description>
										<content:encoded><![CDATA[<div data-elementor-type="wp-post" data-elementor-id="21138" class="elementor elementor-21138" data-elementor-post-type="post">
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					<h1 class="elementor-heading-title elementor-size-default">Ispezione superficiale WELd</h1>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">utilizzando un profilometro 3D portatile</h2>				</div>
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															<img loading="lazy" decoding="async" width="768" height="217" src="https://nanovea.com/wp-content/uploads/2022/07/Weld-Surface-Inspection.jpg" class="attachment-medium_large size-medium_large wp-image-21147" alt="" />															</div>
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					<h2 class="elementor-heading-title elementor-size-default">Preparato da</h2>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">CRAIG LEISING</h2>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">INTRODUZIONE</h2>				</div>
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									<p>Ispezione della superficie della saldatura con un profilometro 3D portatile Preparato da CRAIG LEISING INTRODUZIONE Può capitare che una particolare saldatura, tipicamente eseguita tramite ispezione visiva, debba essere analizzata con un livello di precisione estremo. Le aree specifiche di interesse per un'analisi precisa includono cricche superficiali, porosità e crateri non riempiti, indipendentemente dalle successive procedure di ispezione. La saldatura [...]</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">IMPORTANZA DEL PROFILOMETRO 3D SENZA CONTATTO PER L'ISPEZIONE DELLA SUPERFICIE DI SALDATURA</h2>				</div>
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									<p>A differenza di altre tecniche come i tastatori o l&#039;interferometria, la NANOVEA <a href="https://nanovea.com/profilometers/">Profilometro 3D senza contatto</a>, utilizzando il cromatismo assiale, può misurare quasi tutte le superfici, le dimensioni dei campioni possono variare ampiamente a causa della stadiazione aperta e non è necessaria alcuna preparazione del campione. L&#039;intervallo da nano a macro si ottiene durante la misurazione del profilo di superficie senza alcuna influenza da parte della riflettività o dell&#039;assorbimento del campione, ha una capacità avanzata di misurare angoli superficiali elevati e non è prevista alcuna manipolazione dei risultati da parte del software. Misura facilmente qualsiasi materiale: trasparente, opaco, speculare, diffusivo, lucido, ruvido ecc. Le funzionalità 2D e 2D dei Profilometri Portatili NANOVEA li rendono strumenti ideali per l&#039;ispezione completa della superficie di saldatura sia in laboratorio che sul campo.</p>								</div>
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									<p style="text-align: left;">OBIETTIVO DI MISURAZIONE</p>								</div>
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									<p>In questa applicazione, il profilatore portatile NANOVEA JR25 viene utilizzato per misurare la rugosità superficiale, la forma e il volume di una saldatura, nonché l'area circostante. Questi dati possono fornire informazioni fondamentali per analizzare correttamente la qualità della saldatura e del processo di saldatura.</p>								</div>
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									<p style="text-align: left;">NANOVEA</p>								</div>
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									<p style="text-align: left;">JR25</p>								</div>
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					<a class="elementor-button elementor-button-link elementor-size-xs" href="https://nanovea.com/instruments/jr25/" id="learn-more-about-instrument">
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									<span class="elementor-button-text">SAPERNE DI PIÙ</span>
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																<a href="https://nanovea.com/instruments/jr25/">
							<img loading="lazy" decoding="async" width="664" height="733" src="https://nanovea.com/wp-content/uploads/2021/08/NANOVEA-Jr25-Portable-Profilometer.png" class="elementor-animation-grow attachment-medium_large size-medium_large wp-image-12966" alt="" />								</a>
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					<h2 class="elementor-heading-title elementor-size-default">RISULTATI DEL TEST</h2>				</div>
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									<p>L'immagine sottostante mostra la vista 3D completa della saldatura e dell'area circostante, insieme ai parametri di superficie della sola saldatura. Il profilo della sezione trasversale 2D è mostrato di seguito.</p>								</div>
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															<img loading="lazy" decoding="async" width="461" height="370" src="https://nanovea.com/wp-content/uploads/2022/07/Weld-Surface-Analysis.jpg" class="attachment-large size-large wp-image-21144" alt="" />															</div>
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									<p><em><strong>il campione</strong></em></p>								</div>
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															<img loading="lazy" decoding="async" width="813" height="495" src="https://nanovea.com/wp-content/uploads/2022/07/Weld-Surface-Inspection-Scan.jpg" class="attachment-large size-large wp-image-21146" alt="" />															</div>
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									<p>Con il profilo della sezione trasversale 2D di cui sopra rimosso dal 3D, le informazioni dimensionali della saldatura vengono calcolate di seguito. Area superficiale e volume di materiale calcolati solo per la saldatura.</p>								</div>
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															<img loading="lazy" decoding="async" width="836" height="500" src="https://nanovea.com/wp-content/uploads/2022/07/Weld-quality-Control.jpg" class="attachment-large size-large wp-image-21143" alt="" />															</div>
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															<img loading="lazy" decoding="async" width="558" height="454" src="https://nanovea.com/wp-content/uploads/2022/07/Weld-Surface-Profilometry.jpg" class="attachment-large size-large wp-image-21148" alt="" />															</div>
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									<table class="aligncenter" style="width: 100%; border-collapse: collapse;"><tbody><tr><td style="width: 33.3333%;"> </td><td style="width: 33.3333%;"><em><strong style="color: #1b96cf;">BUCO</strong></em></td><td style="width: 33.3333%;"><em><strong style="color: #1b96cf;">PICCO</strong></em></td></tr><tr><td style="width: 33.3333%; text-align: right;"><em><strong style="color: #1b96cf;">SUPERFICIE</strong></em></td><td style="width: 33.3333%;"><em><strong>1,01 mm<sup>2</sup></strong></em></td><td style="width: 33.3333%;"><em><strong>14,0 mm<sup>2</sup></strong></em></td></tr><tr><td style="width: 33.3333%; text-align: right;"><em><strong style="color: #1b96cf;">VOLUME</strong></em></td><td style="width: 33.3333%;"><em><strong>8,799e-5 mm<sup>3</sup></strong></em></td><td style="width: 33.3333%;"><em><strong>23,27 mm<sup>3</sup></strong></em></td></tr><tr><td style="width: 33.3333%; text-align: right;"><em><strong style="color: #1b96cf;">PROFONDITÀ/ALTEZZA MASSIMA</strong></em></td><td style="width: 33.3333%;"><em><strong>0,0276 mm</strong></em></td><td style="width: 33.3333%;"><em><strong>0,6195 mm</strong></em></td></tr><tr><td style="width: 33.3333%; text-align: right;"><em><strong style="color: #1b96cf;">PROFONDITÀ/ALTEZZA MEDIA</strong></em></td><td style="width: 33.3333%;"><em><strong> <span class="fontstyle0">0,004024 mm</span> </strong></em></td><td style="width: 33.3333%;"><em><strong> <span class="fontstyle0">0,2298 mm</span> </strong></em></td></tr></tbody></table>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">CONCLUSIONE</h2>				</div>
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									<p>In questa applicazione, abbiamo dimostrato come il profilatore senza contatto NANOVEA 3D possa caratterizzare con precisione le caratteristiche critiche di una saldatura e della superficie circostante. In base alla rugosità, alle dimensioni e al volume, è possibile determinare un metodo quantitativo per la qualità e la ripetibilità e indagare ulteriormente. I campioni di saldatura, come l'esempio riportato in questa nota applicativa, possono essere facilmente analizzati con un profilatore NANOVEA standard da tavolo o portatile per test interni o sul campo.</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">Avete un'applicazione simile?</h2>				</div>
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				</div><p>The post <a href="https://nanovea.com/it/ispezione-della-superficie-di-saldatura-con-un-profilometro-3d-portatile/">Weld Surface Inspection Using a Portable 3D Profilometer</a> appeared first on <a href="https://nanovea.com/it">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
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		<title>Analisi della frattografia con la profilometria 3D</title>
		<link>https://nanovea.com/it/analisi-della-frattografia-con-la-profilometria-3d/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=fractography-analysis-using-3d-profilometry</link>
					<comments>https://nanovea.com/it/analisi-della-frattografia-con-la-profilometria-3d/#respond</comments>
		
		<dc:creator><![CDATA[nanovea]]></dc:creator>
		<pubdate>Tue, 05 Apr 2022 17:27:55 +0000</pubdate>
				<category><![CDATA[Application Notes]]></category>
		<category><![CDATA[Laboratory Testing]]></category>
		<category><![CDATA[Profilometry | Geometry and Shape]]></category>
		<category><![CDATA[Profilometry | Roughness and Finish]]></category>
		<category><![CDATA[Profilometry | Texture and Grain]]></category>
		<category><![CDATA[Profilometry | Volume and Area]]></category>
		<category><![CDATA[Profilometry Testing]]></category>
		<guid ispermalink="false">https://nanovea.com/?p=18527</guid>

					<description><![CDATA[<p>FRACTOGRAPHY ANALYSIS USING 3D PROFILOMETRY Prepared by CRAIG LEISING INTRODUCTION Fractography is the study of features on fractured surfaces and has historically been investigated via Microscope or SEM. Depending on the size of the feature, a microscope (macro features) or SEM (nano and micro features) are selected for the surface analysis. Both ultimately allowing for [&#8230;]</p>
<p>The post <a href="https://nanovea.com/it/analisi-della-frattografia-con-la-profilometria-3d/">Fractography Analysis Using 3D Profilometry</a> appeared first on <a href="https://nanovea.com/it">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
]]></description>
										<content:encoded><![CDATA[<div data-elementor-type="wp-post" data-elementor-id="18527" class="elementor elementor-18527" data-elementor-post-type="post">
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					<h2 class="elementor-heading-title elementor-size-default">ANALISI DELLA FRATTOGRAFIA</h2>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">USANDO LA PROFILOMETRIA 3D</h2>				</div>
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															<img loading="lazy" decoding="async" width="768" height="217" src="https://nanovea.com/wp-content/uploads/2022/04/Metal-Fracture-Inspection.jpg" class="attachment-medium_large size-medium_large wp-image-18498" alt="" />															</div>
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					<h2 class="elementor-heading-title elementor-size-default">Preparato da</h2>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">CRAIG LEISING</h2>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">INTRODUZIONE</h2>				</div>
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									<p>La frattografia è lo studio delle caratteristiche sulle superfici fratturate ed è stata storicamente studiata tramite microscopio o SEM. A seconda delle dimensioni dell&#039;elemento, per l&#039;analisi della superficie viene selezionato un microscopio (macro caratteristiche) o un SEM (nano e micro caratteristiche). Entrambi consentono in definitiva di identificare il tipo di meccanismo di frattura. Sebbene efficace, il microscopio presenta chiari limiti e il SEM nella maggior parte dei casi, oltre all’analisi a livello atomico, non è pratico per la misurazione della superficie della frattura e manca di una più ampia capacità di utilizzo. Con i progressi nella tecnologia di misurazione ottica, NANOVEA <a href="https://nanovea.com/profilometers/">Profilometro 3D senza contatto</a> è ora considerato lo strumento preferito, con la sua capacità di fornire misurazioni di superfici 2D e 3D su scala nanometrica e macrometrica</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">IMPORTANZA DEL PROFILOMETRO 3D SENZA CONTATTO PER L'ISPEZIONE DELLE FRATTURE</h2>				</div>
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									<p>A differenza di un SEM, un profilometro 3D senza contatto può misurare quasi tutte le superfici, le dimensioni del campione, con una preparazione minima del campione, il tutto offrendo dimensioni verticali e orizzontali superiori a quelle di un SEM. Con un profilatore, le caratteristiche da nano a macro gamma sono catturate in una singola misurazione con zero influenza dalla riflettività del campione. Misura facilmente qualsiasi materiale: trasparente, opaco, speculare, diffusivo, lucido, ruvido, ecc. Il profilometro 3D senza contatto fornisce una capacità ampia e facile da usare per massimizzare gli studi sulla frattura della superficie ad una frazione del costo di un SEM.</p>								</div>
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									<p style="text-align: left;">OBIETTIVO DI MISURAZIONE</p>								</div>
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									<p>In questa applicazione, il NANOVEA ST400 viene utilizzato per misurare la superficie fratturata di un campione di acciaio. In questo studio, mostreremo un'area 3D, l'estrazione del profilo 2D e la mappa direzionale della superficie.</p>								</div>
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									<p style="text-align: left;">NANOVEA</p>								</div>
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									<p style="text-align: left;">ST400</p>								</div>
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									<span class="elementor-button-text">SAPERNE DI PIÙ</span>
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																<a href="https://nanovea.com/instruments/st400">
							<img loading="lazy" decoding="async" width="768" height="756" src="https://nanovea.com/wp-content/uploads/2020/12/Nanovea-Customizable-Profilometer.png" class="elementor-animation-grow attachment-medium_large size-medium_large wp-image-9779" alt="Profilmometro ottico 3D Nanovea ST400 per l&#039;analisi della profondità del battistrada e della rugosità superficiale degli pneumatici" />								</a>
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						<section class="elementor-section elementor-inner-section elementor-element elementor-element-e3eafc1 elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="e3eafc1" data-element_type="section">
						<div class="elementor-container elementor-column-gap-default">
					<div class="elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-b154808" data-id="b154808" data-element_type="column" data-settings="{&quot;background_background&quot;:&quot;classic&quot;}">
			<div class="elementor-widget-wrap elementor-element-populated">
						<div class="elementor-element elementor-element-9c67049 elementor-widget elementor-widget-heading" data-id="9c67049" data-element_type="widget" data-widget_type="heading.default">
				<div class="elementor-widget-container">
					<h2 class="elementor-heading-title elementor-size-default">RISULTATI</h2>				</div>
				</div>
					</div>
		</div>
				<div class="elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-91f0b18" data-id="91f0b18" data-element_type="column">
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						<div class="elementor-element elementor-element-98d107e elementor-widget elementor-widget-heading" data-id="98d107e" data-element_type="widget" data-widget_type="heading.default">
				<div class="elementor-widget-container">
					<h2 class="elementor-heading-title elementor-size-default">SUPERFICIE SUPERIORE</h2>				</div>
				</div>
					</div>
		</div>
					</div>
		</section>
				<section class="elementor-section elementor-inner-section elementor-element elementor-element-0621d2b elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="0621d2b" data-element_type="section">
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						<div class="elementor-element elementor-element-e1f3ef4 elementor-widget elementor-widget-image" data-id="e1f3ef4" data-element_type="widget" data-widget_type="image.default">
				<div class="elementor-widget-container">
															<img loading="lazy" decoding="async" width="941" height="509" src="https://nanovea.com/wp-content/uploads/2022/04/Metal-Fracture-Analysis.jpg" class="attachment-large size-large wp-image-18497" alt="" />															</div>
				</div>
					</div>
		</div>
				<div class="elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-ae400e8" data-id="ae400e8" data-element_type="column">
			<div class="elementor-widget-wrap elementor-element-populated">
						<div class="elementor-element elementor-element-d503459 elementor-widget elementor-widget-heading" data-id="d503459" data-element_type="widget" data-widget_type="heading.default">
				<div class="elementor-widget-container">
					<h2 class="elementor-heading-title elementor-size-default">Direzione della texture della superficie 3D</h2>				</div>
				</div>
				<div class="elementor-element elementor-element-5948908 elementor-widget elementor-widget-image" data-id="5948908" data-element_type="widget" data-widget_type="image.default">
				<div class="elementor-widget-container">
															<img loading="lazy" decoding="async" width="429" height="210" src="https://nanovea.com/wp-content/uploads/2022/04/3D-Surface-Direction-Mapping.jpg" class="attachment-large size-large wp-image-18509" alt="" />															</div>
				</div>
				<div class="elementor-element elementor-element-bdf5736 elementor-widget elementor-widget-text-editor" data-id="bdf5736" data-element_type="widget" data-widget_type="text-editor.default">
				<div class="elementor-widget-container">
									<table style="width: 100.868%;"><tbody><tr><td style="width: 65.1042%;">Isotropia</td><td style="width: 121.875%;">51.26%</td></tr><tr><td style="width: 65.1042%;">Prima direzione</td><td style="width: 121.875%;">123.2º</td></tr><tr><td style="width: 65.1042%;">Seconda direzione</td><td style="width: 121.875%;">116.3º</td></tr><tr><td style="width: 65.1042%;">Terza direzione</td><td style="width: 121.875%;">0.1725º</td></tr></tbody></table>								</div>
				</div>
					</div>
		</div>
					</div>
		</section>
				<section class="elementor-section elementor-inner-section elementor-element elementor-element-f9fa7d0 elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="f9fa7d0" data-element_type="section">
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				<div class="elementor-widget-container">
															<img loading="lazy" decoding="async" width="854" height="273" src="https://nanovea.com/wp-content/uploads/2022/04/Fractography-Profilometer-Study.jpg" class="attachment-large size-large wp-image-18493" alt="" />															</div>
				</div>
				<div class="elementor-element elementor-element-ecc9c0a elementor-widget elementor-widget-text-editor" data-id="ecc9c0a" data-element_type="widget" data-widget_type="text-editor.default">
				<div class="elementor-widget-container">
									<p><span class="fontstyle0">Area superficiale, volume, rugosità e molti altri possono essere calcolati automaticamente da questa estrazione.</span> </p>								</div>
				</div>
					</div>
		</div>
				<div class="elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-6e6e18f" data-id="6e6e18f" data-element_type="column">
			<div class="elementor-widget-wrap elementor-element-populated">
						<div class="elementor-element elementor-element-56bc628 elementor-widget elementor-widget-heading" data-id="56bc628" data-element_type="widget" data-widget_type="heading.default">
				<div class="elementor-widget-container">
					<h2 class="elementor-heading-title elementor-size-default">Estrazione del profilo 2D</h2>				</div>
				</div>
				<div class="elementor-element elementor-element-9bb102b elementor-widget elementor-widget-image" data-id="9bb102b" data-element_type="widget" data-widget_type="image.default">
				<div class="elementor-widget-container">
															<img loading="lazy" decoding="async" width="430" height="255" src="https://nanovea.com/wp-content/uploads/2022/04/Fractography-Analysis.jpg" class="attachment-large size-large wp-image-18491" alt="" />															</div>
				</div>
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		</div>
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		</section>
					</div>
		</div>
					</div>
		</section>
				<section class="elementor-section elementor-top-section elementor-element elementor-element-0d1d40f elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="0d1d40f" data-element_type="section">
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						<section class="elementor-section elementor-inner-section elementor-element elementor-element-d789db6 elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="d789db6" data-element_type="section">
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					<div class="elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-d5d6ed5" data-id="d5d6ed5" data-element_type="column" data-settings="{&quot;background_background&quot;:&quot;classic&quot;}">
			<div class="elementor-widget-wrap elementor-element-populated">
						<div class="elementor-element elementor-element-c6154dc elementor-widget elementor-widget-heading" data-id="c6154dc" data-element_type="widget" data-widget_type="heading.default">
				<div class="elementor-widget-container">
					<h2 class="elementor-heading-title elementor-size-default">RISULTATI</h2>				</div>
				</div>
					</div>
		</div>
				<div class="elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-90aed2e" data-id="90aed2e" data-element_type="column">
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				<div class="elementor-widget-container">
					<h2 class="elementor-heading-title elementor-size-default">SUPERFICIE LATERALE</h2>				</div>
				</div>
					</div>
		</div>
					</div>
		</section>
				<section class="elementor-section elementor-inner-section elementor-element elementor-element-cb0add2 elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="cb0add2" data-element_type="section">
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			<div class="elementor-widget-wrap elementor-element-populated">
						<div class="elementor-element elementor-element-e1e9f50 elementor-widget elementor-widget-image" data-id="e1e9f50" data-element_type="widget" data-widget_type="image.default">
				<div class="elementor-widget-container">
															<img loading="lazy" decoding="async" width="944" height="506" src="https://nanovea.com/wp-content/uploads/2022/04/Fractography-Profilometer-Analysis.jpg" class="attachment-large size-large wp-image-18492" alt="" />															</div>
				</div>
					</div>
		</div>
				<div class="elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-31333af" data-id="31333af" data-element_type="column">
			<div class="elementor-widget-wrap elementor-element-populated">
						<div class="elementor-element elementor-element-42ad972 elementor-widget elementor-widget-heading" data-id="42ad972" data-element_type="widget" data-widget_type="heading.default">
				<div class="elementor-widget-container">
					<h2 class="elementor-heading-title elementor-size-default">Direzione della texture della superficie 3D</h2>				</div>
				</div>
				<div class="elementor-element elementor-element-3cd8889 elementor-widget elementor-widget-image" data-id="3cd8889" data-element_type="widget" data-widget_type="image.default">
				<div class="elementor-widget-container">
															<img loading="lazy" decoding="async" width="430" height="211" src="https://nanovea.com/wp-content/uploads/2022/04/Fracture-3D-Surface-Direction-Mapping.jpg" class="attachment-large size-large wp-image-18494" alt="" />															</div>
				</div>
				<div class="elementor-element elementor-element-5a5cbe4 elementor-widget elementor-widget-text-editor" data-id="5a5cbe4" data-element_type="widget" data-widget_type="text-editor.default">
				<div class="elementor-widget-container">
									<table style="width: 100.868%;"><tbody><tr><td style="width: 65.1042%;">Isotropia</td><td style="width: 121.875%;"><span class="fontstyle0">15.55</span>%</td></tr><tr><td style="width: 65.1042%;">Prima direzione</td><td style="width: 121.875%;"><span class="fontstyle0">0.1617</span>º</td></tr><tr><td style="width: 65.1042%;">Seconda direzione</td><td style="width: 121.875%;"><span class="fontstyle0">110.5</span>º</td></tr><tr><td style="width: 65.1042%;">Terza direzione</td><td style="width: 121.875%;"><span class="fontstyle0">171.5</span>º</td></tr></tbody></table>								</div>
				</div>
					</div>
		</div>
					</div>
		</section>
				<section class="elementor-section elementor-inner-section elementor-element elementor-element-23d7308 elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="23d7308" data-element_type="section">
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						<div class="elementor-element elementor-element-971463b elementor-widget elementor-widget-image" data-id="971463b" data-element_type="widget" data-widget_type="image.default">
				<div class="elementor-widget-container">
															<img loading="lazy" decoding="async" width="850" height="272" src="https://nanovea.com/wp-content/uploads/2022/04/Metal-Fracture-Measurement.jpg" class="attachment-large size-large wp-image-18499" alt="" />															</div>
				</div>
				<div class="elementor-element elementor-element-241bedb elementor-widget elementor-widget-text-editor" data-id="241bedb" data-element_type="widget" data-widget_type="text-editor.default">
				<div class="elementor-widget-container">
									<p><span class="fontstyle0">Area superficiale, volume, rugosità e molti altri possono essere calcolati automaticamente da questa estrazione.</span> </p>								</div>
				</div>
					</div>
		</div>
				<div class="elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-356dcd0" data-id="356dcd0" data-element_type="column">
			<div class="elementor-widget-wrap elementor-element-populated">
						<div class="elementor-element elementor-element-d21e858 elementor-widget elementor-widget-heading" data-id="d21e858" data-element_type="widget" data-widget_type="heading.default">
				<div class="elementor-widget-container">
					<h2 class="elementor-heading-title elementor-size-default">Estrazione del profilo 2D</h2>				</div>
				</div>
				<div class="elementor-element elementor-element-5cc99d7 elementor-widget elementor-widget-image" data-id="5cc99d7" data-element_type="widget" data-widget_type="image.default">
				<div class="elementor-widget-container">
															<img loading="lazy" decoding="async" width="455" height="196" src="https://nanovea.com/wp-content/uploads/2022/04/Fracture-Profilometry-measurement.jpg" class="attachment-large size-large wp-image-18495" alt="" />															</div>
				</div>
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		</div>
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		</section>
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					<h2 class="elementor-heading-title elementor-size-default">CONCLUSIONE</h2>				</div>
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				<div class="elementor-element elementor-element-18f7f2e elementor-widget elementor-widget-text-editor" data-id="18f7f2e" data-element_type="widget" data-widget_type="text-editor.default">
				<div class="elementor-widget-container">
									<p>In questa applicazione, abbiamo mostrato come il NANOVEA ST400 3D Non-Contact Profilometer può caratterizzare con precisione la topografia completa (nano, micro e macro caratteristiche) di una superficie fratturata. Dall'area 3D, la superficie può essere chiaramente identificata e le sottoaree o i profili/sezioni trasversali possono essere rapidamente estratti e analizzati con una lista infinita di calcoli della superficie. Le caratteristiche superficiali sub nanometriche possono essere ulteriormente analizzate con un modulo AFM integrato.</p><p>Inoltre, NANOVEA ha incluso una versione portatile alla sua linea di profilometri, particolarmente importante per gli studi sul campo dove la superficie di frattura è immobile. Con questo ampio elenco di capacità di misurazione della superficie, l'analisi della superficie di frattura non è mai stata così facile e conveniente con un unico strumento.</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">Avete un'applicazione simile?</h2>				</div>
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				</div><p>The post <a href="https://nanovea.com/it/analisi-della-frattografia-con-la-profilometria-3d/">Fractography Analysis Using 3D Profilometry</a> appeared first on <a href="https://nanovea.com/it">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
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		<title>Usura e attrito dei nastri polimerici con il tribometro</title>
		<link>https://nanovea.com/it/usura-e-attrito-dei-nastri-polimerici-con-il-tribometro/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=polymer-belt-wear-and-friction-using-tribometer</link>
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		<dc:creator><![CDATA[nanovea]]></dc:creator>
		<pubdate>Thu, 06 Jan 2022 21:24:20 +0000</pubdate>
				<category><![CDATA[Application Notes]]></category>
		<category><![CDATA[Laboratory Testing]]></category>
		<category><![CDATA[Linear Tribology]]></category>
		<category><![CDATA[Profilometry | Geometry and Shape]]></category>
		<category><![CDATA[Profilometry | Roughness and Finish]]></category>
		<category><![CDATA[Profilometry | Texture and Grain]]></category>
		<category><![CDATA[Profilometry Testing]]></category>
		<category><![CDATA[Tribology Testing]]></category>
		<guid ispermalink="false">https://nanovea.com/?p=16977</guid>

					<description><![CDATA[<p>POLYMER BELTS WEAR AND FRICTION USING a TRIBOMETER Prepared by DUANJIE LI, PhD INTRODUCTION Belt drive transmits power and tracks relative movement between two or more rotating shafts. As a simple and inexpensive solution with minimal maintenance, belt drives are widely used in a variety of applications, such as bucksaws, sawmills, threshers, silo blowers and [&#8230;]</p>
<p>The post <a href="https://nanovea.com/it/usura-e-attrito-dei-nastri-polimerici-con-il-tribometro/">Polymer Belt Wear and Friction using a Tribometer</a> appeared first on <a href="https://nanovea.com/it">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
]]></description>
										<content:encoded><![CDATA[<div data-elementor-type="wp-post" data-elementor-id="16977" class="elementor elementor-16977" data-elementor-post-type="post">
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					<h2 class="elementor-heading-title elementor-size-default">CINGHIE IN POLIMERO</h2>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">USURA E FRITTURA CON UN TRIBOMETRO</h2>				</div>
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															<img loading="lazy" decoding="async" width="768" height="217" src="https://nanovea.com/wp-content/uploads/2022/01/Polymer-Belts-Wear-Testing.jpg" class="attachment-medium_large size-medium_large wp-image-16979" alt="" />															</div>
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					<h2 class="elementor-heading-title elementor-size-default">Preparato da</h2>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">DUANJIE LI, PhD</h2>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">INTRODUZIONE</h2>				</div>
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									<p>La trasmissione a cinghia trasmette potenza e traccia il movimento relativo tra due o più alberi rotanti. Essendo una soluzione semplice ed economica con una manutenzione minima, le trasmissioni a cinghia sono ampiamente utilizzate in una varietà di applicazioni, come seghe, segherie, trebbiatrici, soffiatori di silo e trasportatori. Le trasmissioni a cinghia possono proteggere i macchinari dal sovraccarico e smorzare e isolare le vibrazioni.</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">IMPORTANZA DELLA VALUTAZIONE DELL'USURA
PER LE TRASMISSIONI A CINGHIA</h2>				</div>
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									<p>Attrito e usura sono inevitabili per le cinghie di una macchina a cinghia. Un attrito sufficiente garantisce una trasmissione efficace della potenza senza slittamenti, ma un attrito eccessivo può usurare rapidamente la cinghia. Durante il funzionamento della trasmissione a cinghia si verificano diversi tipi di usura, come la fatica, l'abrasione e l'attrito. Per prolungare la durata della cinghia e ridurre i costi e i tempi di riparazione e sostituzione, è auspicabile una valutazione affidabile delle prestazioni di usura delle cinghie per migliorarne la durata, l'efficienza produttiva e le prestazioni applicative. La misurazione accurata del coefficiente di attrito e del tasso di usura della cinghia facilita la ricerca e lo sviluppo e il controllo di qualità della produzione di cinghie.</p>								</div>
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																<a href="https://nanovea.com/instruments/t2000/">
							<img loading="lazy" decoding="async" width="768" height="711" src="https://nanovea.com/wp-content/uploads/2020/12/T2000-Superior-Tribometer.png" class="elementor-animation-grow attachment-medium_large size-medium_large wp-image-9913" alt="Tribometro pneumatico ad alto carico" />								</a>
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									<p style="text-align: left;">OBIETTIVO DI MISURAZIONE</p>								</div>
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									<p style="text-align: left;"><span class="fontstyle0">In questo studio abbiamo simulato e confrontato il comportamento all'usura di cinghie con diverse texture superficiali per mostrare la capacità del </span><span class="fontstyle2">NANOVEA </span><span class="fontstyle0">Il tribometro T2000 simula il processo di usura del nastro in modo controllato e monitorato.</span></p>								</div>
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									<p style="text-align: left;">NANOVEA</p>								</div>
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									<p style="text-align: left;">T2000</p>								</div>
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									<span class="elementor-button-text">SAPERNE DI PIÙ</span>
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					<h2 class="elementor-heading-title elementor-size-default">PROCEDURE DI TEST</h2>				</div>
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									<p><span class="fontstyle0">Il coefficiente di attrito, COF, e la resistenza all'usura di due cinghie con diversa rugosità e struttura della superficie sono stati valutati con il metodo del </span><span class="fontstyle2">NANOVEA </span><span class="fontstyle0">Carico elevato <a href="https://nanovea.com/tribometers/">Tribometro </a>utilizzando il modulo di usura reciprocante lineare. Come contromateriale è stata utilizzata una sfera in acciaio 440 (diametro 10 mm). La rugosità superficiale e le tracce di usura sono state esaminate utilizzando un integrato <a href="https://nanovea.com/profilometers/">Profilometro 3D senza contatto</a>. Il tasso di usura, </span><span class="fontstyle2">K</span><span class="fontstyle0">è stato valutato con la formula </span><span class="fontstyle2">K=Vl(Fxs)</span><span class="fontstyle0">, dove </span><span class="fontstyle2">V </span><span class="fontstyle0">è il volume consumato, </span><span class="fontstyle2">F </span><span class="fontstyle0">è il carico normale e </span><span class="fontstyle2">s </span><span class="fontstyle0">è la distanza di scorrimento.</span></p><p> </p><p><span class="fontstyle0">Si noti che in questo studio è stata utilizzata come esempio una sfera liscia in acciaio 440, ma è possibile applicare qualsiasi materiale solido con forme e finiture superficiali diverse utilizzando dispositivi personalizzati per simulare la situazione applicativa reale.</span></p>								</div>
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															<img loading="lazy" decoding="async" width="759" height="428" src="https://nanovea.com/wp-content/uploads/2022/01/Polymer-Belts-Wear-and-Friction.jpg" class="attachment-large size-large wp-image-16988" alt="" />															</div>
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															<img loading="lazy" decoding="async" width="758" height="514" src="https://nanovea.com/wp-content/uploads/2022/01/Polymer-Belts-Tribometer.jpg" class="attachment-large size-large wp-image-16987" alt="" />															</div>
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					<h2 class="elementor-heading-title elementor-size-default">RISULTATI E DISCUSSIONE</h2>				</div>
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									<p><span class="fontstyle0">Il nastro testurizzato e il nastro liscio presentano una rugosità superficiale Ra di 33,5 e 8,7 um, rispettivamente, secondo i profili superficiali analizzati presi con un </span><span class="fontstyle2">NANOVEA </span><span class="fontstyle0">Profilatore ottico 3D senza contatto. Il COF e il tasso di usura delle due cinghie testate sono stati misurati rispettivamente a 10 N e 100 N, per confrontare il comportamento di usura delle cinghie a carichi diversi.</span></p>								</div>
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									<p><span class="fontstyle0">FIGURA 1 </span><span class="fontstyle2">mostra l'evoluzione del COF delle cinghie durante i test di usura. Le cinghie con texture diverse mostrano comportamenti di usura sostanzialmente diversi. È interessante notare che dopo il periodo di rodaggio, durante il quale il COF aumenta progressivamente, il nastro testurizzato raggiunge un COF inferiore, pari a ~0,5, in entrambe le prove condotte con carichi di 10 N e 100 N. In confronto, il nastro liscio testato con un carico di 10 N mostra un COF significativamente più alto, pari a ~1,4, quando il COF si stabilizza e si mantiene al di sopra di questo valore per il resto della prova. La cinghia liscia testata con un carico di 100 N è stata rapidamente consumata dalla sfera in acciaio 440 e ha formato un'ampia traccia di usura. La prova è stata quindi interrotta a 220 giri.</span></p>								</div>
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															<img loading="lazy" decoding="async" width="571" height="472" src="https://nanovea.com/wp-content/uploads/2022/01/Polymer-Belts-COF.jpg" class="attachment-large size-large wp-image-16980" alt="" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">FIGURA 1:</span><span class="fontstyle0" style="color: #1b96cf;"><span style="color: #000000;"><span class="fontstyle0"> Evoluzione della COF dei nastri a diversi carichi.
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									<p>La FIGURA 2 confronta le immagini 3D delle tracce di usura dopo i test a 100 N. Il profilometro 3D senza contatto NANOVEA offre uno strumento per analizzare la morfologia dettagliata delle tracce di usura, fornendo maggiori informazioni sulla comprensione fondamentale del meccanismo di usura.</p>								</div>
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															<img loading="lazy" decoding="async" width="602" height="150" src="https://nanovea.com/wp-content/uploads/2022/01/Polymer-Belts-Coefficient-of-Friction.jpg" class="attachment-large size-large wp-image-16991" alt="" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">TABELLA 1:</span><span class="fontstyle0" style="color: #1b96cf;"><span style="color: #000000;"><span class="fontstyle0"> Risultato dell'analisi delle tracce di usura.
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															<img loading="lazy" decoding="async" width="586" height="411" src="https://nanovea.com/wp-content/uploads/2022/01/Polymer-Belts-Profilometer-scan.jpg" class="attachment-large size-large wp-image-16983" alt="" />															</div>
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									<p style="text-align: center;"><span style="color: #1b96cf;">FIGURA 2:</span><span style="color: #1b96cf;"><span style="color: #000000;">  <span class="fontstyle0">Vista 3D dei due nastri<br />dopo le prove a 100 N.</span></span></span></p>								</div>
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									<p class="MsoNormal">Il profilo tridimensionale della pista di usura consente di determinare direttamente e con precisione il volume della pista di usura calcolato dal software di analisi avanzata, come mostrato nella TABELLA 1. In un test di usura di 220 giri, il nastro liscio presenta una traccia di usura molto più ampia e profonda, con un volume di 75,7 mm3 , rispetto a un volume di usura di 14,0 mm3 per il nastro testurizzato dopo un test di usura di 600 giri. L'attrito significativamente più elevato del nastro liscio contro la sfera d'acciaio porta a un tasso di usura 15 volte superiore rispetto al nastro testurizzato.</p><p class="MsoNormal"> </p><p class="MsoNormal">Una differenza così drastica di COF tra il nastro testurizzato e il nastro liscio è probabilmente legata alla dimensione dell'area di contatto tra il nastro e la sfera d'acciaio, che porta anche a prestazioni di usura diverse. La FIGURA 3 mostra le tracce di usura dei due nastri al microscopio ottico. L'esame delle tracce di usura è in accordo con l'osservazione dell'evoluzione della COF: La cinghia testurizzata, che mantiene un basso COF di ~0,5, non mostra alcun segno di usura dopo il test di usura con un carico di 10 N. La cinghia liscia mostra una piccola traccia di usura a 10 N. I test di usura eseguiti a 100 N creano tracce di usura sostanzialmente più grandi sia sulla cinghia testurizzata che su quella liscia, e il tasso di usura sarà calcolato utilizzando profili 3D come verrà discusso nel paragrafo successivo.</p>								</div>
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															<img loading="lazy" decoding="async" width="490" height="470" src="https://nanovea.com/wp-content/uploads/2022/01/Polymer-Belts-Wear-Test.jpg" class="attachment-large size-large wp-image-16989" alt="" />															</div>
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									<p style="text-align: center;"><span style="color: #1b96cf;">FIGURA 3:</span><span style="color: #1b96cf;"><span style="color: #000000;">  <span class="fontstyle0">Tracce di usura al microscopio ottico.</span> <br /></span></span></p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">CONCLUSIONE</h2>				</div>
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									<p>In questo studio abbiamo dimostrato la capacità del tribometro NANOVEA T2000 di valutare il coefficiente di attrito e il tasso di usura delle cinghie in modo ben controllato e quantitativo. La struttura della superficie gioca un ruolo fondamentale nella resistenza all'attrito e all'usura delle cinghie durante il loro funzionamento. Il nastro testurizzato presenta un coefficiente di attrito stabile di ~0,5 e possiede una lunga durata, che si traduce in una riduzione dei tempi e dei costi di riparazione o sostituzione degli utensili. In confronto, l'attrito eccessivo del nastro liscio contro la sfera d'acciaio consuma rapidamente il nastro. Inoltre, il carico sul nastro è un fattore fondamentale per la sua durata. Il sovraccarico crea un attrito molto elevato, che porta a un'usura accelerata del nastro.</p>
<p>Il tribometro NANOVEA T2000 offre test di usura e attrito precisi e ripetibili utilizzando modalità rotative e lineari conformi alle norme ISO e ASTM, con moduli opzionali per l'usura ad alta temperatura, la lubrificazione e la tribocorrosione disponibili in un unico sistema pre-integrato.&nbsp;<span style="font-size: 16.8px;">NANOVEA&nbsp;</span>è la soluzione ideale per determinare l'intera gamma di proprietà tribologiche di rivestimenti, film e substrati sottili o spessi, morbidi o duri.</p>								</div>
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				</div><p>The post <a href="https://nanovea.com/it/usura-e-attrito-dei-nastri-polimerici-con-il-tribometro/">Polymer Belt Wear and Friction using a Tribometer</a> appeared first on <a href="https://nanovea.com/it">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
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		<title>Microstruttura dei fossili con la profilometria 3D</title>
		<link>https://nanovea.com/it/microstruttura-dei-fossili-con-la-profilometria-3d/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=fossil-microstructure-using-3d-profilometry</link>
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		<dc:creator><![CDATA[nanovea]]></dc:creator>
		<pubdate>Tue, 28 Dec 2021 20:03:37 +0000</pubdate>
				<category><![CDATA[Application Notes]]></category>
		<category><![CDATA[Laboratory Testing]]></category>
		<category><![CDATA[Profilometry | Geometry and Shape]]></category>
		<category><![CDATA[Profilometry | Roughness and Finish]]></category>
		<category><![CDATA[Profilometry | Texture and Grain]]></category>
		<category><![CDATA[Profilometry Testing]]></category>
		<guid ispermalink="false">https://nanovea.com/?p=16911</guid>

					<description><![CDATA[<p>FOSSIL MICROSTRUCTURE USING 3D PROFILOMETRY Prepared by DUANJIE LI, PhD INTRODUCTION Fossils are the preserved remains of traces of plants, animals and other organisms buried in sediment under ancient seas, lakes and rivers. The soft body tissue usually decays after death, but the hard shells, bones and teeth fossilize. Microstructure surface features are often preserved [&#8230;]</p>
<p>The post <a href="https://nanovea.com/it/microstruttura-dei-fossili-con-la-profilometria-3d/">Fossil Microstructure Using 3D Profilometry</a> appeared first on <a href="https://nanovea.com/it">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
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										<content:encoded><![CDATA[<div data-elementor-type="wp-post" data-elementor-id="16911" class="elementor elementor-16911" data-elementor-post-type="post">
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					<h2 class="elementor-heading-title elementor-size-default">MICROSTRUTTURA FOSSILE</h2>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">USANDO LA PROFILOMETRIA 3D</h2>				</div>
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															<img loading="lazy" decoding="async" width="768" height="217" src="https://nanovea.com/wp-content/uploads/2021/12/Fossils-Portable-Profilometer.jpg" class="attachment-medium_large size-medium_large wp-image-16924" alt="" />															</div>
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					<h2 class="elementor-heading-title elementor-size-default">Preparato da</h2>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">DUANJIE LI, PhD</h2>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">INTRODUZIONE</h2>				</div>
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									<p>I fossili sono i resti conservati di tracce di piante, animali e altri organismi sepolti nei sedimenti di antichi mari, laghi e fiumi. I tessuti molli del corpo di solito si decompongono dopo la morte, ma i gusci duri, le ossa e i denti si fossilizzano. Le caratteristiche superficiali della microstruttura sono spesso conservate quando avviene la sostituzione minerale dei gusci e delle ossa originali, il che fornisce una visione dell'evoluzione del tempo e del meccanismo di formazione dei fossili.</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">IMPORTANZA DI UN PROFILOMETRO 3D SENZA CONTATTO PER L'ESAME DEI FOSSILI</h2>				</div>
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									<p>I profili 3D del fossile ci permettono di osservare da vicino le caratteristiche superficiali dettagliate del campione fossile. L&#039;alta risoluzione e la precisione del profilometro NANOVEA potrebbero non essere distinguibili ad occhio nudo. Il software di analisi del profilometro offre un&#039;ampia gamma di studi applicabili a queste superfici uniche. A differenza di altre tecniche come i tastatori, la NANOVEA <a href="https://nanovea.com/profilometers/">Profilometro 3D senza contatto</a> misura le caratteristiche della superficie senza toccare il campione. Ciò consente di preservare le vere caratteristiche superficiali di alcuni delicati campioni fossili. Inoltre, il profilometro portatile modello Jr25 consente la misurazione 3D su siti fossili, il che facilita sostanzialmente l&#039;analisi dei fossili e la protezione dopo lo scavo.</p>								</div>
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									<p style="text-align: left;">OBIETTIVO DI MISURAZIONE</p>								</div>
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									<p style="text-align: left;"><span style="font-size: 16.8px;">In questo studio, il profilometro NANOVEA Jr25 è stato utilizzato per misurare la superficie di due campioni fossili rappresentativi. L'intera superficie di ciascun fossile è stata scansionata e analizzata per caratterizzarne le caratteristiche superficiali, tra cui rugosità, contorno e direzione della texture.</span></p>								</div>
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									<p style="text-align: left;">NANOVEA</p>								</div>
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									<p style="text-align: left;">Jr25</p>								</div>
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																<a href="https://nanovea.com/instruments/jr25/">
							<img loading="lazy" decoding="async" width="664" height="733" src="https://nanovea.com/wp-content/uploads/2021/08/NANOVEA-Jr25-Portable-Profilometer.png" class="elementor-animation-grow attachment-medium_large size-medium_large wp-image-12966" alt="" />								</a>
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					<h2 class="elementor-heading-title elementor-size-default">FOSSILE DI BRACHIOPODE</h2>				</div>
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									<p>Il primo campione fossile presentato in questa relazione è un Brachiopode fossile, proveniente da un animale marino dotato di "valvole" (gusci) dure sulla superficie superiore e inferiore. La loro prima comparsa risale al periodo Cambriano, più di 550 milioni di anni fa.</p><p><span style="font-size: 16.8px;">La vista 3D della scansione è mostrata in FIGURA 1 e la vista in falsi colori è mostrata in FIGURA 2. </span></p>								</div>
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															<img loading="lazy" decoding="async" width="535" height="501" src="https://nanovea.com/wp-content/uploads/2021/12/Shell-Fossil-Analysis.jpg" class="attachment-large size-large wp-image-16919" alt="" />															</div>
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															<img loading="lazy" decoding="async" width="717" height="521" src="https://nanovea.com/wp-content/uploads/2021/12/Brachiopod-Fossil-Scan-Profilometer.jpg" class="attachment-large size-large wp-image-16939" alt="" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">FIGURA 1: </span><span class="fontstyle0" style="color: #1b96cf;"><span style="color: #000000;"><span class="fontstyle0">Vista 3D del campione fossile di brachiopode.</span><br /></span></span></p>								</div>
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															<img loading="lazy" decoding="async" width="501" height="418" src="https://nanovea.com/wp-content/uploads/2021/12/Brachiopod-Fossil-Study.jpg" class="attachment-large size-large wp-image-16925" alt="" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">FIGURA 2: </span><span class="fontstyle0"><span style="color: #000000;">Vista in falsi colori del campione fossile di brachiopode.</span></span></p>								</div>
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									<p><span style="font-size: 16.8px;">La forma complessiva è stata poi rimossa dalla superficie per indagare la morfologia superficiale locale e il contorno del fossile di brachiopode, come mostrato nella FIGURA 3. Sul campione di Brachiopode fossile si può ora osservare una particolare texture di scanalature divergenti.</span></p>								</div>
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															<img loading="lazy" decoding="async" width="773" height="318" src="https://nanovea.com/wp-content/uploads/2021/12/Shell-Fossil-Profilometry.jpg" class="attachment-large size-large wp-image-16920" alt="" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">FIGURA 3:</span><span class="fontstyle0" style="color: #1b96cf;"><span style="color: #000000;"><span class="fontstyle0"> Vista False Color e Vista Linee di contorno dopo la rimozione della forma.</span><br /></span></span></p>								</div>
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									<p><span style="font-size: 16.8px;">Un profilo di linea viene estratto dall'area testurizzata per mostrare una vista trasversale della superficie fossile in FIGURA 4. Lo studio dell'altezza del gradino misura le dimensioni precise delle caratteristiche della superficie. I solchi hanno una larghezza media di ~0,38 mm e una profondità di ~0,25 mm.</span></p>								</div>
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															<img loading="lazy" decoding="async" width="1024" height="243" src="https://nanovea.com/wp-content/uploads/2021/12/Shell-Fossil-Study.jpg" class="attachment-large size-large wp-image-16921" alt="" />															</div>
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															<img loading="lazy" decoding="async" width="1024" height="161" src="https://nanovea.com/wp-content/uploads/2021/12/Crinoid-Fossil-Study-Profilometer.jpg" class="attachment-large size-large wp-image-16938" alt="" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">FIGURA 4:</span><span class="fontstyle0" style="color: #1b96cf;"><span style="color: #000000;"><span class="fontstyle0"> Studi sul profilo delle linee e sull'altezza dei gradini della superficie strutturata.</span><br /></span></span></p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">FOSSILE DI STELO DI CRINOIDE</h2>				</div>
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									<p><span style="font-size: 16.8px;">Il secondo campione fossile è un fossile di stelo di crinoide. I crinoidi sono comparsi per la prima volta nei mari del periodo Cambriano medio, circa 300 milioni di anni prima dei dinosauri. </span></p><p><span style="font-size: 16.8px;"> </span></p><p><span style="font-size: 16.8px;">La vista 3D della scansione è mostrata nella FIGURA 5 e la vista in falsi colori è mostrata nella FIGURA 6. </span></p>								</div>
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															<img loading="lazy" decoding="async" width="661" height="508" src="https://nanovea.com/wp-content/uploads/2021/12/Crinoid-Stem-Fossil-Study.jpg" class="attachment-large size-large wp-image-16917" alt="" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">FIGURA 5: </span><span class="fontstyle0" style="color: #1b96cf;"><span style="color: #000000;"><span class="fontstyle0">Vista 3D del campione fossile di crinoide.</span><br /></span></span></p>								</div>
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									<p><span style="font-size: 16.8px;">L'isotropia e la rugosità della texture superficiale del fossile del crinoide sono analizzate nella FIGURA 7. </span></p><p><span style="font-size: 16.8px;"> </span><span style="color: var( --e-global-color-text );">Questo fossile ha una direzione preferenziale della tessitura nell'angolo vicino a 90°, che porta all'isotropia della tessitura di 69%.</span></p>								</div>
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															<img loading="lazy" decoding="async" width="497" height="368" src="https://nanovea.com/wp-content/uploads/2021/12/Crinoid-Fossil-Profilometry.jpg" class="attachment-large size-large wp-image-16914" alt="" />															</div>
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									<p style="text-align: center;"><span style="color: #1b96cf;">FIGURA 6:</span><span style="color: #1b96cf;"><span style="color: #000000;"> Vista a falsi colori del </span></span><span style="color: #000000;">Gambo di crinoide </span><span style="color: #000000;">campione.</span></p><p style="text-align: center;"><span style="color: #1b96cf;"><span style="color: #000000;"> </span></span></p>								</div>
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															<img loading="lazy" decoding="async" width="506" height="248" src="https://nanovea.com/wp-content/uploads/2021/12/Crinoid-Fossil-Measurement.jpg" class="attachment-large size-large wp-image-16913" alt="" />															</div>
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															<img loading="lazy" decoding="async" width="444" height="202" src="https://nanovea.com/wp-content/uploads/2021/12/Crinoid-Fossil-Isotropy-and-Roughness.jpg" class="attachment-large size-large wp-image-16912" alt="" />															</div>
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															<img loading="lazy" decoding="async" width="1024" height="234" src="https://nanovea.com/wp-content/uploads/2021/12/Fossil-Profilometry-Parameters.jpg" class="attachment-large size-large wp-image-16918" alt="" />															</div>
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									<p style="text-align: center;"><span style="color: #1b96cf;">FIGURA 7:</span><span style="color: #1b96cf;"><span style="color: #000000;"> </span></span><span style="color: #000000;">Isotropia della texture superficiale e rugosità del gambo fossile di Crinoide.</span></p>								</div>
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									<p><span style="font-size: 16.8px;">Il profilo 2D lungo la direzione assiale del fossile di crinoide è illustrato nella FIGURA 8. </span></p><p><span style="color: var( --e-global-color-text );">La dimensione dei picchi della texture superficiale è abbastanza uniforme.</span></p>								</div>
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															<img loading="lazy" decoding="async" width="1024" height="211" src="https://nanovea.com/wp-content/uploads/2021/12/Crinoid-Stem-Fossil-Profile-Analysis.jpg" class="attachment-large size-large wp-image-16916" alt="" />															</div>
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									<p style="text-align: center;"><span style="color: #1b96cf;">FIGURA 8:</span><span style="color: #000000;"> Analisi del profilo 2D del fossile del fusto di crinoide.</span></p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">CONCLUSIONE</h2>				</div>
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									<p><span style="font-size: 16.8px;">In questa applicazione, abbiamo studiato in modo esaustivo le caratteristiche superficiali 3D di un fossile di Brachiopode e di un Crinoide utilizzando il profilometro portatile senza contatto NANOVEA Jr25. Abbiamo dimostrato che lo strumento è in grado di caratterizzare con precisione la morfologia 3D dei campioni fossili. Le interessanti caratteristiche superficiali e la texture dei campioni vengono poi analizzate ulteriormente. Il campione di brachiopode possiede una struttura a scanalature divergenti, mentre il fossile di stelo di crinoide mostra un'isotropia preferenziale della struttura. Le scansioni 3D dettagliate e precise della superficie si rivelano strumenti ideali per paleontologi e geologi per studiare l'evoluzione della vita e la formazione dei fossili.</span></p><p><span style="color: var( --e-global-color-text ); background-color: rgba(255, 255, 255, 0);">I dati qui riportati rappresentano solo una parte dei calcoli disponibili nel software di analisi. I profilometri NANOVEA misurano virtualmente qualsiasi superficie in campi come quello dei semiconduttori, della microelettronica, del solare, delle fibre ottiche, dell'automotive, dell'aerospaziale, della metallurgia, della lavorazione, dei rivestimenti, del farmaceutico, del biomedicale, dell'ambientale e molti altri.</span></p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">Avete un'applicazione simile?</h2>				</div>
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				</div><p>The post <a href="https://nanovea.com/it/microstruttura-dei-fossili-con-la-profilometria-3d/">Fossil Microstructure Using 3D Profilometry</a> appeared first on <a href="https://nanovea.com/it">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
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		<title>Misura del confine di superficie</title>
		<link>https://nanovea.com/it/misurazione-dei-limiti-di-superficie/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=surface-boundary-measurement</link>
					<comments>https://nanovea.com/it/misurazione-dei-limiti-di-superficie/#respond</comments>
		
		<dc:creator><![CDATA[nanovea]]></dc:creator>
		<pubdate>Fri, 25 Jun 2021 16:05:59 +0000</pubdate>
				<category><![CDATA[Application Notes]]></category>
		<category><![CDATA[Laboratory Testing]]></category>
		<category><![CDATA[Profilometry | Geometry and Shape]]></category>
		<category><![CDATA[Profilometry | Roughness and Finish]]></category>
		<category><![CDATA[Profilometry | Texture and Grain]]></category>
		<category><![CDATA[Profilometry | Volume and Area]]></category>
		<category><![CDATA[Profilometry Testing]]></category>
		<guid ispermalink="false">https://nanovea.com/?p=11898</guid>

					<description><![CDATA[<p>Misurazione dei confini di superficie con la profilometria 3D Per saperne di più</p>
<p>The post <a href="https://nanovea.com/it/misurazione-dei-limiti-di-superficie/">Surface Boundary Measurement</a> appeared first on <a href="https://nanovea.com/it">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
]]></description>
										<content:encoded><![CDATA[<div data-elementor-type="wp-post" data-elementor-id="11898" class="elementor elementor-11898" data-elementor-post-type="post">
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									<p>Misurazione dei confini di superficie con la profilometria 3D</p><p>Per saperne di più</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default"><span>MISURAZIONE DEI CONFINI DELLA SUPERFICIE</span></h2>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">USANDO LA PROFILOMETRIA 3D</h2>				</div>
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															<img loading="lazy" decoding="async" width="1024" height="290" src="https://nanovea.com/wp-content/uploads/2021/06/MicrosoftTeams-image-15.jpg" class="attachment-large size-large wp-image-11942" alt="" />															</div>
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					<h2 class="elementor-heading-title elementor-size-default">Preparato da</h2>				</div>
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					<h2 class="elementor-heading-title elementor-size-default"><span>Craig Leising</span></h2>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">INTRODUZIONE</h2>				</div>
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									<p>Negli studi in cui l'interfaccia di caratteristiche superficiali, modelli, forme ecc. viene valutata per l'orientamento, sarà utile identificare rapidamente le aree di interesse sull'intero profilo di misura. Segmentando una superficie in aree significative, l'utente può valutare rapidamente i confini, i picchi, le fosse, le aree, i volumi e molti altri elementi per comprendere il loro ruolo funzionale nell'intero profilo della superficie in esame. Ad esempio, come nel caso dell'imaging dei confini dei grani dei metalli, l'importanza dell'analisi è l'interfaccia di molte strutture e il loro orientamento complessivo. La comprensione di ciascuna area di interesse consente di identificare difetti o anomalie all'interno dell'area complessiva. Sebbene l'imaging dei bordi dei grani sia tipicamente studiato a una distanza superiore alle capacità del Profilometro e sia solo un'analisi di immagini 2D, è un utile riferimento per illustrare il concetto di ciò che verrà mostrato qui su una scala più ampia, insieme ai vantaggi della misurazione di superfici 3D.</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">IMPORTANZA DEL PROFILOMETRO 3D NON A CONTATTO PER LO STUDIO DELLA SEPARAZIONE DELLE SUPERFICI 
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									<p>A differenza di altre tecniche come i tastatori o l&#039;interferometria, il <a href="https://nanovea.com/profilometers/">Profilometro 3D senza contatto</a>, utilizzando il cromatismo assiale, può misurare quasi tutte le superfici, le dimensioni dei campioni possono variare ampiamente a causa della stadiazione aperta e non è necessaria alcuna preparazione del campione. L&#039;intervallo da nano a macro si ottiene durante la misurazione del profilo di superficie senza alcuna influenza da parte della riflettività o dell&#039;assorbimento del campione, ha una capacità avanzata di misurare angoli superficiali elevati e non è prevista alcuna manipolazione dei risultati da parte del software. Misura facilmente qualsiasi materiale: trasparente, opaco, speculare, diffusivo, lucido, ruvido ecc. La tecnica del profilometro senza contatto fornisce una capacità ideale, ampia e facile da usare per massimizzare gli studi di superficie quando sarà necessaria l&#039;analisi dei confini della superficie; insieme ai vantaggi della funzionalità combinata 2D e 3D.</p>								</div>
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															<img loading="lazy" decoding="async" width="1024" height="512" src="https://nanovea.com/wp-content/uploads/2021/06/Styrofoam-surface-3D-Profilometer.jpg" class="attachment-large size-large wp-image-11941" alt="" />															</div>
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									<p>OBIETTIVO DI MISURAZIONE</p>								</div>
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									<p><em>In questa applicazione il profilometro Nanovea ST400 viene utilizzato per misurare l'area superficiale del polistirolo. I confini sono stati stabiliti combinando un file di intensità riflessa con la topografia, acquisiti simultaneamente con il NANOVEA ST400. Questi dati sono stati poi utilizzati per calcolare diverse informazioni sulla forma e sulle dimensioni di ciascun "granello" di polistirolo.</em></p>								</div>
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									<p>NANOVEA</p>								</div>
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									<p>ST400</p>								</div>
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																<a href="https://nanovea.com/instruments/st400/">
							<img loading="lazy" decoding="async" width="800" height="808" src="https://nanovea.com/wp-content/uploads/2020/12/Nanovea-Optical-Profilometry-ST400.png" class="elementor-animation-grow attachment-large size-large wp-image-9556" alt="" />								</a>
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									RISULTATI E DISCUSSIONE: Misura del limite di superficie 2D								</div>
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									<p>Immagine topografica (sotto a sinistra) mascherata dall'immagine dell'intensità riflessa (sotto a destra) per definire chiaramente i confini dei grani. Tutti i grani di diametro inferiore a 565 µm sono stati ignorati applicando il filtro.</p>								</div>
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															<img loading="lazy" decoding="async" width="1024" height="656" src="https://nanovea.com/wp-content/uploads/2021/06/Styrofoam-surface-profilometry.jpg" class="attachment-large size-large wp-image-11938" alt="" />															</div>
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															<img loading="lazy" decoding="async" width="1024" height="656" src="https://nanovea.com/wp-content/uploads/2021/06/Styrofoam-surface-profilometer.jpg" class="attachment-large size-large wp-image-11937" alt="" />															</div>
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									<p style="text-align: center;">Numero totale di grani: 167<br>
Area totale di proiezione occupata dai grani: 166,917 mm² (64,5962 %)<br>
Area totale prevista occupata dai confini: (35.4038 %)<br>
Densità dei grani: 0,646285 grani / mm2</p>
Area = 0,999500 mm² +/- 0,491846 mm² <br>
Perimetro = 9114,15 µm +/- 4570,38 µm<br>
Diametro equivalente = 1098,61 µm +/- 256,235 µm<br>
Diametro medio = 945,373 µm +/- 248,344 µm<br>
Diametro minimo = 675,898 µm +/- 246,850 µm<br>
Diametro massimo = 1312,43 µm +/- 295,258 µm								</div>
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															<img loading="lazy" decoding="async" width="1024" height="679" src="https://nanovea.com/wp-content/uploads/2021/06/Boundary-Measurement-Profilometer.jpg" class="attachment-large size-large wp-image-11940" alt="" />															</div>
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									<p>RISULTATI E DISCUSSIONE: Misurazione dei confini della superficie 3D</p>								</div>
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									<p>Utilizzando i dati topografici 3D ottenuti, è possibile analizzare il volume, l'altezza, il picco, il rapporto d'aspetto e le informazioni generali sulla forma di ciascun grano. Area 3D totale occupata: 2,525 mm3</p>								</div>
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															<img loading="lazy" decoding="async" width="1024" height="893" src="https://nanovea.com/wp-content/uploads/2021/06/Boundary-Measurement-2D-profiler.jpg" class="attachment-large size-large wp-image-11939" alt="" />															</div>
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															<img loading="lazy" decoding="async" width="1024" height="731" src="https://nanovea.com/wp-content/uploads/2021/06/StryrofoamBoundary-Measurement.jpg" class="attachment-large size-large wp-image-11936" alt="" />															</div>
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					<h2 class="elementor-heading-title elementor-size-default">CONCLUSIONE</h2>				</div>
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									<p>In questa applicazione, abbiamo dimostrato come il profilometro senza contatto NANOVEA 3D possa caratterizzare con precisione la superficie del polistirolo. È possibile ottenere informazioni statistiche sull'intera superficie di interesse o su singoli grani, siano essi picchi o buchi. In questo esempio sono stati utilizzati tutti i grani più grandi di una dimensione definita dall'utente per mostrare l'area, il perimetro, il diametro e l'altezza. Le caratteristiche qui illustrate possono essere fondamentali per la ricerca e il controllo di qualità di superfici naturali e pre-fabbricate che spaziano dalle applicazioni bio-mediche a quelle di microlavorazione, oltre a molte altre. </p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">Avete un'applicazione simile?</h2>				</div>
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									<span class="elementor-button-text">OTTENERE RAPIDAMENTE PREZZI E DETTAGLI</span>
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				</div><p>The post <a href="https://nanovea.com/it/misurazione-dei-limiti-di-superficie/">Surface Boundary Measurement</a> appeared first on <a href="https://nanovea.com/it">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
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		<title>Tire Tread Depth &#038; Rubber Surface Roughness Measurement &#124; 3D Optical Profiler</title>
		<link>https://nanovea.com/it/misurazione-della-profondita-del-battistrada-dei-pneumatici/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=tire-tread-depth-measurement</link>
					<comments>https://nanovea.com/it/misurazione-della-profondita-del-battistrada-dei-pneumatici/#respond</comments>
		
		<dc:creator><![CDATA[nanovea]]></dc:creator>
		<pubdate>Thu, 25 Feb 2021 22:49:17 +0000</pubdate>
				<category><![CDATA[Application Notes]]></category>
		<category><![CDATA[Laboratory Testing]]></category>
		<category><![CDATA[Profilometry | Geometry and Shape]]></category>
		<category><![CDATA[Profilometry | Roughness and Finish]]></category>
		<category><![CDATA[Profilometry | Step Height and Thickness]]></category>
		<category><![CDATA[Profilometry | Texture and Grain]]></category>
		<category><![CDATA[Profilometry | Volume and Area]]></category>
		<category><![CDATA[Profilometry Testing]]></category>
		<guid ispermalink="false">https://nanovea.com/?p=10619</guid>

					<description><![CDATA[<p>Learn how the Nanovea ST400 3D Optical Profiler provides precise tire tread depth measurement and rubber surface roughness analysis for tire performance and wear studies.</p>
<p>The post <a href="https://nanovea.com/it/misurazione-della-profondita-del-battistrada-dei-pneumatici/">Tire Tread Depth &#038; Rubber Surface Roughness Measurement | 3D Optical Profiler</a> appeared first on <a href="https://nanovea.com/it">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
]]></description>
										<content:encoded><![CDATA[<div data-elementor-type="wp-post" data-elementor-id="10619" class="elementor elementor-10619" data-elementor-post-type="post">
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									<h1 style="text-align: center; font-style: italic; font-weight: bold; line-height: 1.4;"><span style="font-size: 40px; color: #1b96cf; display: block;">MISURAZIONE DELLA PROFONDITÀ DEL BATTISTRADA E DELLA RUGOSITÀ DELLA SUPERFICIE IN GOMMA
</span><span style="font-size: 32px; color: #000;">utilizzando un profilatore ottico 3D
</span></h1>								</div>
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															<img loading="lazy" decoding="async" width="1024" height="290" src="https://nanovea.com/wp-content/uploads/2021/02/Rubber-Tread-Contour-Measurement-NANOVEA-Profilometer.jpg" class="attachment-large size-large wp-image-10633" alt="Riferimento per la misurazione della profondità del battistrada degli pneumatici che mostra diversi modelli di battistrada per pneumatici di automobili" />															</div>
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					<h2 class="elementor-heading-title elementor-size-default">Preparato da</h2>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">ANDREA HERRMANN</h2>				</div>
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									Mentre la profondità del battistrada degli pneumatici viene comunemente misurata con misuratori portatili per la sicurezza dei consumatori, la ricerca e sviluppo industriale e i produttori di pneumatici richiedono metodi più avanzati. Questa nota applicativa dimostra come un profilometro ottico 3D fornisca misurazioni precise della profondità del battistrada degli pneumatici, mappatura del contorno e analisi della rugosità della superficie della gomma per studi ad alta precisione.								</div>
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				<section class="elementor-section elementor-inner-section elementor-element elementor-element-a714598 elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="a714598" data-element_type="section">
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					<h2 class="elementor-heading-title elementor-size-default">INTRODUZIONE</h2>				</div>
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									Come tutti i materiali, il coefficiente di attrito della gomma è in parte correlato alla rugosità della sua superficie. Negli pneumatici dei veicoli, sia la profondità del battistrada che la rugosità della superficie influiscono direttamente sulla trazione, sulla frenata e sulle prestazioni di usura. In questo studio, la rugosità e le dimensioni della superficie della gomma e del battistrada vengono analizzate utilizzando la profilometria 3D senza contatto.								</div>
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															<img loading="lazy" decoding="async" width="806" height="625" src="https://nanovea.com/wp-content/uploads/2021/02/Rubber-Surface-Roughness-Profilometry.png" class="attachment-large size-large wp-image-10622" alt="Campione di pneumatico utilizzato per la misurazione della profondità del battistrada e della rugosità della superficie in gomma" />															</div>
				</div>
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									<p>IL CAMPIONE</p>								</div>
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									<p>IMPORTANZA DELLA PROFILOMETRIA 3D SENZA CONTATTO PER LA MISURAZIONE DELLA PROFONDITÀ DEL BATTISTRADA DEI PNEUMATICI</p>								</div>
				</div>
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									<p>A differenza di altre tecniche come le sonde a contatto o l'interferometria, <a href="https://nanovea.com/profilometers/">Profiler ottici 3D senza contatto di NANOVEA</a> utilizzare il cromatismo assiale per misurare quasi tutte le superfici.</p><p>Il sistema Profiler è aperto e permette di usare campioni di diverse dimensioni senza bisogno di prepararli. Con una sola scansione, puoi vedere sia la profondità del battistrada che la rugosità della superficie, senza che la riflettività o l'assorbimento del campione influenzino i risultati. Inoltre, questi profilatori possono misurare angoli di superficie elevati senza bisogno di modificare i risultati con un software.</p><p>Questa versatilità rende i profilatori NANOVEA ideali sia per i test di usura del battistrada degli pneumatici che per la ricerca avanzata sui materiali in gomma.</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">OBIETTIVO DI MISURAZIONE</h2>				</div>
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									<p>In questa applicazione, mostriamo il <a href="https://nanovea.com/instruments/st400/">NANOVEA ST400</a>, un profilometro ottico 3D senza contatto che misura la profondità del battistrada, la geometria del profilo e la rugosità della superficie della gomma. Per questo studio è stata selezionata a caso un'area campione sufficientemente ampia da rappresentare l'intera superficie dello pneumatico. Per quantificare le caratteristiche della gomma, abbiamo utilizzato il software di analisi NANOVEA Ultra 3D per misurare le dimensioni delle scanalature, la profondità del battistrada, la rugosità della superficie e l'area sviluppata rispetto a quella proiettata.</p>								</div>
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				<section class="elementor-section elementor-inner-section elementor-element elementor-element-63de4cb elementor-reverse-mobile elementor-section-full_width elementor-reverse-tablet elementor-section-height-default elementor-section-height-default" data-id="63de4cb" data-element_type="section">
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									<p style="text-align: center; font-size: 20pt; color: black;">NANOVEA <span style="font-size: 20pt; color: #1b96cf;">ST400 Standard</span><br />Profiler ottico 3D</p>								</div>
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																<a href="https://nanovea.com/instruments/st500">
							<img loading="lazy" decoding="async" width="300" height="296" src="https://nanovea.com/wp-content/uploads/2020/12/Nanovea-Customizable-Profilometer.png" class="elementor-animation-grow attachment-medium size-medium wp-image-9779" alt="Profilmometro ottico 3D Nanovea ST400 per l&#039;analisi della profondità del battistrada e della rugosità superficiale degli pneumatici" />								</a>
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									<span class="fontstyle0" style="color: #1b96cf;">ANALISI: </span><span class="fontstyle0" style="color: #ffffff;">PNEUMATICI</span>								</div>
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				<section class="elementor-section elementor-top-section elementor-element elementor-element-8cd344f elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="8cd344f" data-element_type="section">
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									La vista 3D e la vista in falsi colori dei battistrada dimostrano l'importanza della mappatura dei disegni delle superfici 3D. Ciò fornisce agli ingegneri uno strumento semplice per valutare l'uniformità della profondità del battistrada, il disegno delle scanalature e l'usura da più angolazioni. L'analisi avanzata dei contorni e l'analisi dell'altezza dei gradini sono entrambi strumenti estremamente potenti per misurare con precisione le dimensioni delle forme e del disegno dei campioni.								</div>
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				<section class="elementor-section elementor-top-section elementor-element elementor-element-f5f5811 elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="f5f5811" data-element_type="section">
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															<img loading="lazy" decoding="async" width="512" height="426" src="https://nanovea.com/wp-content/uploads/2021/02/Rubber-Tire-Tread-Scan-Profilometer.jpg" class="attachment-large size-large wp-image-10627" alt="Profilometria ottica 3D in falsi colori della profondità del battistrada e della geometria delle scanalature degli pneumatici" />															</div>
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				<div class="elementor-element elementor-element-8949fb3 elementor-widget elementor-widget-image" data-id="8949fb3" data-element_type="widget" data-widget_type="image.default">
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															<img loading="lazy" decoding="async" width="592" height="397" src="https://nanovea.com/wp-content/uploads/2021/02/Rubber-Tyre-3D-Scan-Profilometer.jpg" class="attachment-large size-large wp-image-10629" alt="Visione della superficie con profilometro 3D per la misurazione della profondità del battistrada degli pneumatici" />															</div>
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									<p><span class="fontstyle0">ANALISI AVANZATA DEI CONTORNI</span></p>								</div>
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															<img loading="lazy" decoding="async" width="879" height="744" src="https://nanovea.com/wp-content/uploads/2021/02/Rubber-Tire-Tread-Contour-Analysis.jpg" class="attachment-large size-large wp-image-10626" alt="Analisi avanzata del profilo delle scanalature del battistrada degli pneumatici mediante profilometria 3D" />															</div>
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				<section class="elementor-section elementor-top-section elementor-element elementor-element-16b45c6 elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="16b45c6" data-element_type="section">
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				<section class="elementor-section elementor-top-section elementor-element elementor-element-69527ee elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="69527ee" data-element_type="section">
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									<p><span class="fontstyle0">ANALISI DELL'ALTEZZA DEL GRADINO</span> </p>								</div>
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				<section class="elementor-section elementor-top-section elementor-element elementor-element-74c284d elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="74c284d" data-element_type="section">
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															<img loading="lazy" decoding="async" width="761" height="126" src="https://nanovea.com/wp-content/uploads/2021/02/Rubber-Tire-Step-Height-Analysis-Profiler.jpg" class="attachment-large size-large wp-image-10625" alt="" />															</div>
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															<img loading="lazy" decoding="async" width="1024" height="255" src="https://nanovea.com/wp-content/uploads/2021/02/Rubber-Tire-Step-Height-Analysis-by-NANOVEA.jpg" class="attachment-large size-large wp-image-10624" alt="Analisi dell&#039;altezza dei gradini per la misurazione della profondità del battistrada degli pneumatici con profilatore ottico 3D" />															</div>
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				<section class="elementor-section elementor-inner-section elementor-element elementor-element-cd48d19 elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="cd48d19" data-element_type="section">
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															<img loading="lazy" decoding="async" width="513" height="124" src="https://nanovea.com/wp-content/uploads/2021/02/Rubber-Tire-Step-Height-Analysis-by-NANOVEA-Profilometer.jpg" class="attachment-large size-large wp-image-10623" alt="" />															</div>
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															<img loading="lazy" decoding="async" width="1024" height="256" src="https://nanovea.com/wp-content/uploads/2021/02/Rubber-Tyre-Step-Height-Analysis-by-NANOVEA.jpg" class="attachment-large size-large wp-image-10630" alt="Profilo dell&#039;altezza dei gradini ottenuto mediante profilometria 3D che mostra la misurazione della profondità del battistrada dello pneumatico" />															</div>
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				<section class="elementor-section elementor-top-section elementor-element elementor-element-9d748c9 elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="9d748c9" data-element_type="section">
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				<section class="elementor-section elementor-top-section elementor-element elementor-element-fe96b86 elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="fe96b86" data-element_type="section" data-settings="{&quot;background_background&quot;:&quot;classic&quot;}">
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									<span class="fontstyle0" style="color: #1b96cf;">ANALISI: </span><span class="fontstyle0" style="color: #ffffff;">SUPERFICIE IN GOMMA</span>								</div>
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				<section class="elementor-section elementor-top-section elementor-element elementor-element-a547451 elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="a547451" data-element_type="section">
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									La superficie in gomma può essere quantificata in vari modi utilizzando strumenti software integrati, come mostrato nelle figure seguenti. Si può osservare che la rugosità superficiale è pari a 2,688 μm e che l'area sviluppata rispetto all'area proiettata è pari a 9,410 mm² rispetto a 8,997 mm². Questi risultati dimostrano come la rugosità della superficie in gomma influisca sulla trazione e sulle prestazioni, consentendo confronti tra diverse formulazioni di gomma o diversi livelli di usura superficiale.								</div>
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				<section class="elementor-section elementor-top-section elementor-element elementor-element-9dc9c98 elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="9dc9c98" data-element_type="section">
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															<img loading="lazy" decoding="async" width="591" height="415" src="https://nanovea.com/wp-content/uploads/2021/02/Tire-Rubber-Surface-Analysis-Scan-NANOVEA.jpg" class="attachment-large size-large wp-image-10621" alt="Analisi della rugosità superficiale della gomma con profilometro ottico 3D" />															</div>
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															<img loading="lazy" decoding="async" width="610" height="314" src="https://nanovea.com/wp-content/uploads/2021/02/Tire-Rubber-Surface-Analysis-Scan-NANOVEA-Profilometer.jpg" class="attachment-large size-large wp-image-10631" alt="ISO 25178 Parametri di altezza della superficie in gomma dei pneumatici" />															</div>
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															<img loading="lazy" decoding="async" width="716" height="505" src="https://nanovea.com/wp-content/uploads/2021/02/Rubber-Tyre-Surface-Analysis-NANOVEA.jpg" class="attachment-large size-large wp-image-10620" alt="Vista della profilometria ottica 3D della rugosità della superficie in gomma e dell&#039;area sviluppata" />															</div>
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															<img loading="lazy" decoding="async" width="610" height="169" src="https://nanovea.com/wp-content/uploads/2021/02/Rubber-Tread-Contour-Measurement-NANOVEA-Profilometer-08-09-20.jpg" class="attachment-large size-large wp-image-10628" alt="Parametri del profilatore della superficie della gomma dei pneumatici" />															</div>
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				<section class="elementor-section elementor-top-section elementor-element elementor-element-3ae9e0d elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="3ae9e0d" data-element_type="section">
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					<h2 class="elementor-heading-title elementor-size-default">CONCLUSIONE</h2>				</div>
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									In questa applicazione abbiamo dimostrato come il profilatore ottico senza contatto NANOVEA 3D sia in grado di caratterizzare con precisione la profondità del battistrada, le dimensioni del contorno e la rugosità superficiale della gomma. I dati mostrano una rugosità superficiale di 2,69 µm e un'area sviluppata di 9,41 mm² con un'area proiettata di 9 mm². Sono state misurate anche varie dimensioni e raggi dei battistrada in gomma. Queste informazioni possono essere utilizzate dai produttori di pneumatici, dai ricercatori automobilistici e dagli ingegneri dei materiali per confrontare i disegni del battistrada, le formulazioni della gomma o gli pneumatici con vari gradi di usura. I dati qui riportati rappresentano solo una parte dei calcoli disponibili nel software di analisi Ultra 3D.								</div>
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									<span class="elementor-button-text">OTTENERE RAPIDAMENTE PREZZI E DETTAGLI</span>
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				</div><p>The post <a href="https://nanovea.com/it/misurazione-della-profondita-del-battistrada-dei-pneumatici/">Tire Tread Depth &#038; Rubber Surface Roughness Measurement | 3D Optical Profiler</a> appeared first on <a href="https://nanovea.com/it">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
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		<title>Ispezione delle parti lavorate</title>
		<link>https://nanovea.com/it/ispezione-dei-pezzi-lavorati-2/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=machined-parts-inspection</link>
					<comments>https://nanovea.com/it/ispezione-dei-pezzi-lavorati-2/#respond</comments>
		
		<dc:creator><![CDATA[Andrew Shore]]></dc:creator>
		<pubdate>Tue, 08 Sep 2020 21:17:54 +0000</pubdate>
				<category><![CDATA[Application Notes]]></category>
		<category><![CDATA[Laboratory Testing]]></category>
		<category><![CDATA[Profilometry | Flatness and Warpage]]></category>
		<category><![CDATA[Profilometry | Geometry and Shape]]></category>
		<category><![CDATA[Profilometry | Volume and Area]]></category>
		<category><![CDATA[Profilometry Testing]]></category>
		<guid ispermalink="false">https://nanovea.com/?p=9130</guid>

					<description><![CDATA[<p>The post <a href="https://nanovea.com/it/ispezione-dei-pezzi-lavorati-2/">Machined Parts Inspection</a> appeared first on <a href="https://nanovea.com/it">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
]]></description>
										<content:encoded><![CDATA[<div data-elementor-type="wp-post" data-elementor-id="9130" class="elementor elementor-9130" data-elementor-post-type="post">
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					<h2 class="elementor-heading-title elementor-size-default">PARTI MACCHINE</h2>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">ispezione dal modello CAD utilizzando la profilometria 3D</h2>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">Autore:</h2>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">Duanjie Li, PhD</h2>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">Revisionato da</h2>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">Jocelyn Esparza</h2>				</div>
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															<img loading="lazy" decoding="async" width="793" height="224" src="https://nanovea.com/wp-content/uploads/2020/09/Machined-Parts-Inspection.png" class="attachment-large size-large wp-image-9131" alt="Ispezione di parti lavorate con un profilometro" />															</div>
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					<h2 class="elementor-heading-title elementor-size-default">INTRODUZIONE</h2>				</div>
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									<p>La domanda di lavorazioni meccaniche di precisione in grado di creare geometrie complesse è in aumento in tutti i settori industriali. Dai settori aerospaziale, medico e automobilistico, agli ingranaggi tecnologici, ai macchinari e agli strumenti musicali, la continua innovazione ed evoluzione spinge le aspettative e gli standard di precisione a nuovi livelli. Di conseguenza, si assiste all'aumento della domanda di tecniche e strumenti di ispezione rigorosi per garantire la massima qualità dei prodotti.</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">Importanza della profilometria 3D senza contatto per l'ispezione dei pezzi</h2>				</div>
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									<p>Il confronto delle proprietà dei pezzi lavorati con i loro modelli CAD è essenziale per verificare le tolleranze e l'aderenza agli standard di produzione. Anche l'ispezione durante il periodo di servizio è cruciale, poiché l'usura dei pezzi potrebbe richiederne la sostituzione. L'identificazione tempestiva di eventuali deviazioni dalle specifiche richieste aiuterà a evitare costose riparazioni, interruzioni della produzione e una reputazione compromessa.</p><p>A differenza della tecnica del tastatore, la NANOVEA <a href="https://nanovea.com/profilometers/">Profilatori ottici</a> eseguire scansioni di superfici 3D senza contatto, consentendo misurazioni rapide, precise e non distruttive di forme complesse con la massima precisione.</p>								</div>
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									<p>OBIETTIVO DI MISURAZIONE</p>								</div>
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									<p>In questa applicazione presentiamo NANOVEA HS2000, un profilatore 3D senza contatto con un sensore ad alta velocità, che esegue un'ispezione superficiale completa di dimensioni, raggio e rugosità. </p><p>Il tutto in meno di 40 secondi.</p>								</div>
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									<p>NANOVEA</p>								</div>
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									<p>HS2000</p>								</div>
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																<a href="https://nanovea.com/instruments/hs2000/">
							<img loading="lazy" decoding="async" width="1024" height="683" src="https://nanovea.com/wp-content/uploads/2020/12/Nanovea-Optical-Profilometry-HS2000.png" class="elementor-animation-grow attachment-large size-large wp-image-9554" alt="" />								</a>
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					<h2 class="elementor-heading-title elementor-size-default">MODELLO CAD</h2>				</div>
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									<p>Una misura precisa delle dimensioni e della rugosità superficiale del pezzo lavorato è fondamentale per assicurarsi che sia conforme alle specifiche, alle tolleranze e alle finiture superficiali desiderate. Di seguito vengono presentati il modello 3D e il disegno tecnico del pezzo da ispezionare.&nbsp;</p>								</div>
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															<img decoding="async" src="https://nanovea.com/wp-content/uploads/2020/09/Machine-Parts-Quality-Control.png" title="" alt="" loading="lazy" />															</div>
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					<h2 class="elementor-heading-title elementor-size-default">VISTA A FALSI COLORI</h2>				</div>
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									<p>La vista in falsi colori del modello CAD e la superficie della parte lavorata scansionata sono confrontate in FIGURA 3. La variazione di altezza sulla superficie del campione può essere osservata dal cambiamento di colore.</p><p>Dalla scansione superficiale 3D vengono estratti tre profili 2D, come indicato in FIGURA 2, per verificare ulteriormente la tolleranza dimensionale del pezzo lavorato.</p>								</div>
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															<img loading="lazy" decoding="async" width="973" height="1024" src="https://nanovea.com/wp-content/uploads/2020/09/Machine-Parts-Profilometry.png" class="attachment-large size-large wp-image-9137" alt="" />															</div>
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					<h2 class="elementor-heading-title elementor-size-default">CONFRONTO TRA PROFILI E RISULTATI</h2>				</div>
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									<p>I profili da 1 a 3 sono mostrati nelle FIGURE da 3 a 5. Il controllo quantitativo delle tolleranze viene effettuato confrontando il profilo misurato con il modello CAD per rispettare i rigorosi standard di produzione. I profili 1 e 2 misurano il raggio di diverse aree del pezzo lavorato curvo. La variazione di altezza del profilo 2 è di 30 µm su una lunghezza di 156 mm, il che soddisfa il requisito di tolleranza di ±125 µm. </p><p>Impostando un valore limite di tolleranza, il software di analisi può determinare automaticamente il superamento o il fallimento del pezzo lavorato.</p>								</div>
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															<img loading="lazy" decoding="async" width="1651" height="767" src="https://nanovea.com/wp-content/uploads/2020/09/Machine-Parts-Inspection-with-a-Profilometer.png" class="attachment-full size-full wp-image-9138" alt="Ispezione di parti di macchine con un profilometro" />															</div>
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															<img loading="lazy" decoding="async" width="1024" height="262" src="https://nanovea.com/wp-content/uploads/2020/09/Machine-Parts-Inspection-with-a-Profilometer-2.png" class="attachment-large size-large wp-image-9139" alt="" />															</div>
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									<p>La rugosità e l'uniformità della superficie del pezzo lavorato svolgono un ruolo importante nel garantirne la qualità e la funzionalità. La FIGURA 6 mostra l'area della superficie estratta dalla scansione madre del pezzo lavorato, utilizzata per quantificare la finitura superficiale. La rugosità superficiale media (Sa) è stata calcolata pari a 2,31 µm.</p>								</div>
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															<img loading="lazy" decoding="async" width="1024" height="313" src="https://nanovea.com/wp-content/uploads/2020/09/Machine-Parts-Inspection-with-a-Profilometer-3.png" class="attachment-large size-large wp-image-9140" alt="" />															</div>
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									<p>In questo studio abbiamo mostrato come il profilatore senza contatto NANOVEA HS2000, dotato di un sensore ad alta velocità, esegua un'ispezione superficiale completa di dimensioni e rugosità. </p><p>Le scansioni ad alta risoluzione consentono agli utenti di misurare la morfologia dettagliata e le caratteristiche superficiali dei pezzi lavorati e di confrontarli quantitativamente con i loro modelli CAD. Lo strumento è inoltre in grado di rilevare qualsiasi difetto, compresi graffi e cricche. </p><p>L'analisi avanzata dei contorni è uno strumento impareggiabile non solo per determinare se i pezzi lavorati soddisfano le specifiche stabilite, ma anche per valutare i meccanismi di guasto dei componenti usurati.</p><p>I dati qui riportati rappresentano solo una parte dei calcoli possibili con il software di analisi avanzata di cui è dotato ogni profilatore ottico NANOVEA.</p><div> </div>								</div>
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				</div><p>The post <a href="https://nanovea.com/it/ispezione-dei-pezzi-lavorati-2/">Machined Parts Inspection</a> appeared first on <a href="https://nanovea.com/it">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
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		<title>Strumenti dentali: Analisi dimensionale e della rugosità superficiale</title>
		<link>https://nanovea.com/it/strumenti-odontoiatrici-analisi-dimensionale-e-di-superficie/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=dental-tools-dimensional-and-surface-roughness-analysis</link>
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		<dc:creator><![CDATA[Andrew Shore]]></dc:creator>
		<pubdate>Wed, 01 Jul 2020 18:25:00 +0000</pubdate>
				<category><![CDATA[Application Notes]]></category>
		<category><![CDATA[Laboratory Testing]]></category>
		<category><![CDATA[Profilometry | Geometry and Shape]]></category>
		<category><![CDATA[Profilometry | Roughness and Finish]]></category>
		<category><![CDATA[Profilometry Testing]]></category>
		<guid ispermalink="false">https://nanovea.com/?p=8484</guid>

					<description><![CDATA[<p>INTRODUCTION &#160; Having precise dimensions and optimal surface roughness are vital to the functionality of dental screws. Many dental screw dimensions require high precision such as radii, angles, distances, and step heights. Understanding local surface roughness is also highly important for any medical tool or part being inserted inside the human body to minimize sliding [&#8230;]</p>
<p>The post <a href="https://nanovea.com/it/strumenti-odontoiatrici-analisi-dimensionale-e-di-superficie/">Dental Tools: Dimensional and Surface Roughness Analysis</a> appeared first on <a href="https://nanovea.com/it">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
]]></description>
										<content:encoded><![CDATA[<p><a href="https://nanovea.com/App-Notes/Dental-Tools-Dimensional-and-Surface-Roughness-Analysis.pdf&quot;" target="_blank" rel="noopener"><br />
<img decoding="async" class="alignright" style="width: 200px;" src="https://nanovea.com/wp-content/uploads/2020/06/DOWNLOAD-PDF-BUTTON-A-s.png" /><br />
</a></p>
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<h2><em><strong>INTRODUZIONE</strong></em></h2>
<p>&nbsp;</p>
<p>Avere dimensioni precise e rugosità superficiale ottimale sono vitali per la funzionalità delle viti dentali. Molte dimensioni delle viti dentali richiedono un&#039;elevata precisione come raggi, angoli, distanze e altezze dei gradini. Comprendere la ruvidità della superficie locale è inoltre estremamente importante per qualsiasi strumento medico o parte inserita all&#039;interno del corpo umano per ridurre al minimo l&#039;attrito radente.</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<h2><em><strong>PROFILOMETRIA SENZA CONTATTO PER LO STUDIO DIMENSIONALE</strong></em></h2>
<p>&nbsp;</p>
<p>Nanovea <a href="https://nanovea.com/profilometers/">Profilatori 3D senza contatto</a> utilizzano una tecnologia basata sulla luce cromatica per misurare qualsiasi superficie materiale: trasparente, opaca, speculare, diffusiva, lucida o ruvida. A differenza della tecnica con tastatore a contatto, la tecnica senza contatto può misurare all&#039;interno di aree ristrette e non aggiunge errori intrinseci dovuti alla deformazione causata dalla pressione della punta su un materiale plastico più morbido. La tecnologia basata sulla luce cromatica offre inoltre una precisione laterale e di altezza superiore rispetto alla tecnologia di variazione della messa a fuoco. I Nanovea Profiler possono scansionare grandi superfici direttamente senza cuciture e profilare la lunghezza di una parte in pochi secondi. È possibile misurare caratteristiche superficiali della gamma da nano a macro e angoli di superficie elevati grazie alla capacità del profilatore di misurare le superfici senza che alcun algoritmo complesso manipoli i risultati.</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<h2><strong><em>OBIETTIVO DI MISURAZIONE</em></strong></h2>
<p>&nbsp;</p>
<p>In questa applicazione, il profilatore ottico Nanovea ST400 è stato utilizzato per misurare una vite dentale lungo le caratteristiche piatte e filettate in un&#039;unica misurazione. La rugosità superficiale è stata calcolata dall&#039;area piana e sono state determinate le varie dimensioni delle caratteristiche filettate.</p>
<p>&nbsp;</p>
<p><a href="https://nanovea.com/wp-content/uploads/2020/06/Measurement-Objective-OLD.jpg"><img loading="lazy" decoding="async" class="alignnone size-full wp-image-8505" src="https://nanovea.com/wp-content/uploads/2020/06/Measurement-Objective-OLD.jpg" alt="controllo qualità delle viti dentali" width="1319" height="665" /></a></p>
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<h6 style="text-align: center;"><em>Campione di vite dentale analizzato da <strong>NANOVEA</strong> Profilatore ottico.</em></h6>
<p>&nbsp;</p>
<div style="text-align: center;">
<p><img loading="lazy" decoding="async" class="wp-image-8514 size-full" src="https://nanovea.com/wp-content/uploads/2020/06/dental-implant-screw-analyzed-s.jpg" alt="" width="200" height="83" /></p>
<h6 class="mceTemp" style="text-align: center;"><i>Campione di vite dentale analizzato.</i></h6>
</div>
<p>&nbsp;</p>
<h2><em><strong>RISULTATI</strong></em></h2>
<p>&nbsp;</p>
<p><strong><em>Superficie 3D</em></strong></p>
<p>La vista 3D e la vista in falsi colori della vite dentale mostrano un&#039;area piatta con filettatura che inizia su entrambi i lati. Fornisce agli utenti uno strumento semplice per osservare direttamente la morfologia della vite da diverse angolazioni. L&#039;area piatta è stata estratta dalla scansione completa per misurarne la rugosità superficiale.</p>
<p>&nbsp;</p>
<p><a href="https://nanovea.com/wp-content/uploads/2020/06/Dental-Screw-QC-13.png"><img loading="lazy" decoding="async" class="size-full wp-image-8525 aligncenter" src="https://nanovea.com/wp-content/uploads/2020/06/Dental-Screw-QC-13.png" alt="" width="996" height="746" /></a></p>
<p><a href="https://nanovea.com/wp-content/uploads/2020/06/Dental-Screw-QC-14.png"><img loading="lazy" decoding="async" class="size-full wp-image-8526 aligncenter" src="https://nanovea.com/wp-content/uploads/2020/06/Dental-Screw-QC-14.png" alt="" width="907" height="622" /></a></p>
<p><a href="https://nanovea.com/wp-content/uploads/2020/06/Dental-Screw-QC-15.png"><img loading="lazy" decoding="async" class="size-full wp-image-8527 aligncenter" src="https://nanovea.com/wp-content/uploads/2020/06/Dental-Screw-QC-15.png" alt="" width="1158" height="650" /></a></p>
<p>&nbsp;</p>
<p><em><strong>Analisi della superficie 2D</strong></em></p>
<p>I profili lineari possono anche essere estratti dalla superficie per mostrare una vista in sezione trasversale della vite. L&#039;analisi del contorno e gli studi sull&#039;altezza del gradino sono stati utilizzati per misurare dimensioni precise in una determinata posizione sulla vite.</p>
<p>&nbsp;</p>
<p><a href="https://nanovea.com/wp-content/uploads/2020/06/Dental-Screw-QC-16.png"><img loading="lazy" decoding="async" class="size-full wp-image-8528 aligncenter" src="https://nanovea.com/wp-content/uploads/2020/06/Dental-Screw-QC-16.png" alt="" width="964" height="854" /></a></p>
<div></div>
<p><a href="https://nanovea.com/wp-content/uploads/2020/06/Dental-Screw-QC-17.png"><img loading="lazy" decoding="async" class="size-full wp-image-8529 aligncenter" src="https://nanovea.com/wp-content/uploads/2020/06/Dental-Screw-QC-17.png" alt="" width="1117" height="634" /></a></p>
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<p><a href="https://nanovea.com/wp-content/uploads/2020/06/Dental-Screw-QC-18.png"><img loading="lazy" decoding="async" class="size-full wp-image-8530 aligncenter" src="https://nanovea.com/wp-content/uploads/2020/06/Dental-Screw-QC-18.png" alt="" width="1102" height="697" /></a></p>
<p>&nbsp;</p>
<p><a href="https://nanovea.com/wp-content/uploads/2020/06/Dental-Screw-Profilometer.jpg"><img loading="lazy" decoding="async" class="size-full wp-image-8532 aligncenter" src="https://nanovea.com/wp-content/uploads/2020/06/Dental-Screw-Profilometer.jpg" alt="" width="1000" height="561" /></a></p>
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<h2><em><strong>CONCLUSIONE</strong></em></h2>
<p>&nbsp;</p>
<p>In questa applicazione, abbiamo mostrato la capacità del profilatore senza contatto Nanovea 3D di calcolare con precisione la rugosità superficiale locale e misurare caratteristiche di grandi dimensioni in un&#039;unica scansione.</p>
<p>I dati mostrano una rugosità superficiale locale di 0,9637 μm. Il raggio della vite tra le filettature è risultato essere di 1,729 mm e le filettature avevano un&#039;altezza media di 0,413 mm. L&#039;angolo medio tra i fili è stato determinato pari a 61,3°.</p>
<p>I dati qui riportati rappresentano solo una parte dei calcoli disponibili nel software di analisi.</p>
<p>&nbsp;</p>
<p style="text-align: center;">Preparato da<br />
Duanjie Li, PhD., Jonathan Thomas e Pierre Leroux</p><p>The post <a href="https://nanovea.com/it/strumenti-odontoiatrici-analisi-dimensionale-e-di-superficie/">Dental Tools: Dimensional and Surface Roughness Analysis</a> appeared first on <a href="https://nanovea.com/it">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
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