Profilometry
Profilometry - Related Videos
08:47
Mimicking and Measuring Occlusal Erosive Tooth Wear with the "Rub&Roll" and Non-contact Profilometry
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Cited by 7 •
2018
The Rub&Roll can mimic the chewing cycle, allowing variation of chewing force, sliding distance, chewing velocity, number of cycles, and frequency, and with a combination of erosive and abrasive challenges can result in a complex simulation of oral ageing.
11:47
Characterization of Surface Modifications by White Light Interferometry: Applications in Ion Sputtering, Laser Ablation, and Tribology Experiments
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Cited by 13 •
2013
White light microscope interferometry is an optical, noncontact and quick method for measuring the topography of surfaces. It is shown how the method can be applied toward mechanical wear analysis, where wear scars on tribological test samples are analyzed; and in materials science to determine ion beam sputtering or laser ablation volumes and depths.
05:30
Roughness Impact of Piezoelectric Dental Scaler on Two Distinct Flowable Composite Filling Materials
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Cited by 1 •
2025
This methodology allows applying a dental appliance on any specimen at any angle with standardized force and stability. This approach might be extensively used in health sciences to standardize the impacts of dental equipment with hand-holding elements such as micromotors, turbines, and ultrasonic scalers on varied surfaces.
08:26
Spray-Coated Melanin/PEDOT:PSS Films for Sustainable Organic Electrochemical Transistors
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2025
A basic protocol for fabricating high-transconductance Melanin/PEDOT:PSS organic electrochemical transistors (OECTs) using spray coating is described. The method allows precise control over film deposition, thickness, and morphology, providing reproducible devices for sustainable and scalable bioelectronic applications.
10:34
The Fabrication and Operation of a Continuous Flow, Micro-Electroporation System with Permeabilization Detection
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Cited by 4 •
2022
This protocol describes the microfabrication techniques required to build a lab-on-a-chip, microfluidic electroporation device. The experimental setup performs controlled, single-cell-level transfections in a continuous flow and can be extended to higher throughputs with population-based control. An analysis is provided showcasing the ability to electrically monitor the degree of cell membrane permeabilization in real-time.
FAQs
Contact profilometry records a stylus’s vertical movement as it travels across the surface, so the measurement includes direct physical interaction with the part. Optical approaches derive surface height from reflected light, interferometry, or imaging without touching the material. This distinction allows engineers to select a measurement approach suited to evaluating surface structure while avoiding physical contact when appropriate.
These descriptors represent different aspects of surface geometry and can reveal different engineering conditions. Roughness characterizes fine-scale irregularity, while waviness indicates broader surface variation; height changes and step features describe larger geometric differences. Separating them helps engineers interpret whether a measured profile reflects machining quality, a dimensional feature, a coating boundary, or another surface condition.
Measurement method affects how the surface is examined because contact profilometry uses a moving stylus, whereas optical methods obtain information without physical contact. Engineers can therefore compare the need for direct stylus tracking with the advantages of reflected-light, interferometric, or imaging-based measurement. This choice is especially relevant when surface structure itself is an important part of the evaluation.
A quantitative profile converts surface features into measurable information that engineers can compare with functional requirements. The resulting data can help relate topography to friction, adhesion, sealing, and overall performance, rather than treating appearance as the only indicator of quality. It also supports assessment of whether observed surface conditions may affect how a component operates in service.
A contact measurement begins by moving a stylus across the surface of interest. As the stylus follows height changes, its vertical movement is recorded to produce a quantitative surface profile. Engineers can then examine that profile for roughness, waviness, step features, or other height variations, using the resulting information to assess the measured part or surface process.
Engineers apply profilometry to examine machining quality, coatings, thin films, additive-manufactured parts, and microfabricated components. In each case, the measured topography can reveal whether the surface has the expected structure or contains meaningful deviations. This makes the technique useful across conventional manufacturing, surface treatment, additive production, and microscale component development.
Measured profiles provide evidence for identifying defects, verifying dimensional tolerances, and assessing wear. Engineers can use these outcomes to compare a surface with its intended geometry, determine whether manufacturing produced unacceptable variation, or document changes after use. Because surface structure can influence friction, adhesion, sealing, and functional performance, the measurements also help connect physical degradation with engineering behavior.