3-Dimensional profile distortion measured by stylus type surface profilometer

Lee, Dong-Hyeok

doi:10.1016/j.measurement.2012.09.022

Cited by 24 publications

(12 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Indeed, different correction algorithms [44,45] can be used for surface reconstruction; those algorithms may be rather complex, depending the tip geometry. In the present work, an algorithm similar to that of Lee et al [46] was applied in order to reconstruct the 3D profile obtained using a spherical tip.…”

Section: Profilometry Measurement Processingmentioning

confidence: 99%

“…This simulation calculates the position a half-sphere of 12.5 μm radius can reach before it comes into contact with the 3D microscopy profile; afterwards, a new height which takes into account the shape of the tip is calculated. As mentioned earlier, the construction of the profile from a spherical tip is similar to the method developed by Lee et al [46]. If the surface of the sample is smooth, the contact point is located at the basis of the hemisphere (Fig.…”

Section: Comparison Of the Profilometry And The 3d Laser Scanning Micmentioning

confidence: 99%

See 1 more Smart Citation

A practical method to characterize proton exchange membrane fuel cell catalyst layer topography: Application to two coating techniques and two carbon supports

et al. 2020

View full text Add to dashboard Cite

The coating technique and the type of carbon support can strongly affect the surface topography, the homogeneity and the thickness of the catalyst layers of Proton Exchange Membrane fuel cells. These features can in turn strongly modify the local diffusion properties of the layer and the final cell performance, but literature about catalytic layers does not often address such issues. This work aims at studying the topography of proton exchange membrane fuel cell catalyst layers by means of 3D characterization methods. For that purpose, two types of slurries, made of Nafion Ⓡ and carbon black or a carbon xerogel, have been coated on a Kapton Ⓡ sheet by film-casting and by spray-coating. The surface topography of the samples was characterized by contact profilometry and 3D laser scanning microscopy. The data obtained with both methods were processed in order to obtain accurate 3D representations of the surface of the layers. Contact profilometry allows to perform measurements over the entire surface of the sample (5 cm × 5 cm). Layers obtained by film-casting turn out to be very smooth, but also thinner at the edges of the coating. For layers prepared by spray-coating, the reproducibility and the homogeneity are improved; however, the surface displays a higher roughness. With 3D laser scanning microscopy measurements, only a small part of the sample was analyzed (0.25 cm 2) with a high definition, allowing to characterize more precisely the surface topography. The comparison of both techniques has been enriched by the simulation of the profilometer tip motion at the surface of the observed 3D microscopy profile, giving insight into the observed differences. The 3D microscopy measurements proved to be more accurate, but not representative of the whole sample, especially for less homogeneous layers prepared by filmcasting.

show abstract

Section: Profilometry Measurement Processingmentioning

confidence: 99%

Section: Comparison Of the Profilometry And The 3d Laser Scanning Micmentioning

confidence: 99%

A practical method to characterize proton exchange membrane fuel cell catalyst layer topography: Application to two coating techniques and two carbon supports

et al. 2020

View full text Add to dashboard Cite

show abstract

“…For this purpose, a surface profilometer was used with a contact stylus to achieve the maximum accuracy and efficiency. Once the surface analysis was complete, other factors were also determined through the comparison of all the peaks and valleys with the mean line [15,16].…”

Section: Techniques and Proceduresmentioning

confidence: 99%

‘Plastic Deformation, Mechanical and Adhesive Properties of Bio-Plastic Material

Raghs¹

2019

Adv. Sci. Technol. Res. J.

View full text Add to dashboard Cite

Given the added need for eco-friendly material, environmental scientists are constantly on the look-out for new solutions. In this respect, biodegradable polymer proved to be a promising one. The Selfix material, being a bioplastic, is biodegradable and, unlike other plastic products, can be considered feasible for the industry as a smart material capable of biodegrading at the end of its life cycle. Using Selfix, waste paper can be re-used, thus eliminating the need for recycling and helping to reduce the CO 2 emissions. The present paper develops 3D models with Selfix material to offer benefits such as easy-cutting and sticking properties in a way that can be educational for children. We examine the mechanical properties of this material using tensile testing, laser-cutting, CNC milling, surface roughness and also scanning electron microscope or SEM.

show abstract

“…In the case of scattering surfaces such as we consider, the re-entrant beam problem is much less of an issue, so we can directly deploy various types of optical non-contact probes at a fixed (vertical) orientation in space [10]. In particular, we are using chromatic-aberration probes (CHRocodile chromatic optical probes, specifically the RB 200-071 with 10mm range and 300nm axial resolution.…”

Section: Instrument Structurementioning

confidence: 99%

Development of swinging part profilometer for optics

Zhang

et al. 2016

SPIE Proceedings

View full text Add to dashboard Cite

A new surface metrology instrument, the 'Swinging Part Profilometer' (SPP), has been developed for in-situ measurement of optics undergoing robot-processing in the ground (non-specular) state. In this paper, we present the hardware-design of the SPP, together with software for hardware-control, data-acquisition and surface-reconstruction. First results on a sample part are presented, compared with interferometric metrology, and error-contributions considered. Notably, during each individual scan of a measurement-cycle, the probe remains fixed. This lends itself to automated probe-deployment by the same robot as performs surface-processing, as probe stability is required on only the time-scale for a single scan.

show abstract

3-Dimensional profile distortion measured by stylus type surface profilometer

Cited by 24 publications

References 32 publications

A practical method to characterize proton exchange membrane fuel cell catalyst layer topography: Application to two coating techniques and two carbon supports

A practical method to characterize proton exchange membrane fuel cell catalyst layer topography: Application to two coating techniques and two carbon supports

‘Plastic Deformation, Mechanical and Adhesive Properties of Bio-Plastic Material

Development of swinging part profilometer for optics

Contact Info

Product

Resources

About