Results 11 to 20 of about 28,914 (258)
, 2021 AbstractAs outlined in the previous chapter, existing technologies for surface profilometry show certain drawbacks in terms of resolution, dynamic measurement range, three-dimensional measurement capabilities and speed. The following chapter introduces a novel approach to surface profilometry which aims to provide solutions to the problems named.
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Micro-Ellipso-Height-Profilometry [PDF]
Optics Communications, 1991 A new instrumental concept for surface measurement is described. In Micro-Ellipso-Height-Profilometry three independent profiles h(x), ψ(x) and Δ(x) of a surface are measured from one diffraction limited scanning spot. The basic equations for the extraction of these three quantities are derived and first results are discussed.
Leonhardt, Klaus +2 more
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Supershear Rayleigh waves at a soft interface [PDF]
, 2013 We report on the experimental observation of waves at a liquid foam surface propagating faster than the bulk shear waves. The existence of such waves has long been debated, but the recent observation of supershear events in a geophysical context has ...
Cobelli, Pablo +2 more
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Three-Dimensional Urethral Profilometry—A Global Urethral Pressure Assessment Method
Diagnostics, 2021 Background: To present a new method of urethral pressure examination, and to evaluate diagnostic capabilities of three-dimensional profilometry, as an alternative to classical urethral profile (UPP). Using five channel catheters and dedicated software, a
Wioletta Katarzyna Szepieniec +3 more
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Ciência e Agrotecnologia, 2009 A perfilometria é uma técnica amplamente utilizada na construção de mapas e gráficos de relevos aplicados a uma vasta área do conhecimento. Frente às necessidades de suprir a demanda da indústria e da área de desenvolvimento de protótipos quanto a ...
Túlio Seabra Gomes +4 more
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One-shot 3d surface reconstruction from instantaneous frequencies: solutions to ambiguity problems [PDF]
, 2009 Phase-measuring profilometry is a well known technique for 3D surface reconstruction based on a sinusoidal pattern that is projected on a scene. If the surface is partly occluded by, for instance, other objects, then the depth shows abrupt transitions at
Heijden, F. van der +2 more
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Wetting of anisotropic sinusoidal surfaces - experimental and numerical study of directional spreading [PDF]
, 2014 Directional wettability, i.e. variation of wetting properties depending on the surface orientation, can be achieved by anisotropic surface texturing. A new high precision process can produce homogeneous sinusoidal surfaces (in particular parallel grooves)
Anselme, K. +5 more
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The effects of material combination and surface roughness in lubricated silicon nitride/steel rolling contact fatigue [PDF]
, 2003 Four kinds of commercially finished 12.7 min HIPed silicon nitride bearing balls with surface roughness values R-a ranging from 0.002 to 0.016 mum were tested using a four-ball rolling configuration.
Ahmed, R, Hadfield, M, Kang, J
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Full wave optical profilometry [PDF]
Journal of the Optical Society of America A, 2011 We show that tomographic diffractive microscopy can be used for profilometry applications with high transverse resolution. We present an iterative reconstruction procedure, based on a rigorous wave scattering model, that permits us to retrieve the profile of rough metallic interfaces from the complex scattered field.
Arhab, Slimane +4 more
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Development of an electronic profilometer to measure mobilization variables in soil harrowing
Spanish Journal of Agricultural Research, 2023 Aim of study: This experiment's objective is to develop an automatic data acquisition system for profilometry, evaluating four harrowing speeds. Area of study: Federal University of Parana, Curitiba, Brazil.
Gabriel G. Zimmermann +4 more
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