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Surface roughness evaluation
Optical profilometers are increasingly replacing tactile measuring systems. It can be assumed that in the near future, 2D parameters will only endure where their informative value is sufficient. 3D characterization of the surface with the aid of optical surface measurement technology not only offers better visualization of measurement data, but also permits more extensive evaluation options. Read more in the surface roughness whitepaper.
Optical vs tactile surface roughness and texture evaluation
If the surface has randomly distributed features, the result for the roughness parameter is strongly influenced by the measuring position. In many cases, profile-based surface description is insufficient to provide information about functional behavior of the surface. Profile based surface characterization allows only limited information about the cause of poor functionality and so includes limited information for quality control purposes.
Custom roughness measurement and evaluation?
ISO for profile and areal surface evaluation
The measurement chains for the areal or profile-based surface evaluation are described in ISO 25178 or ISO 4287, they differ from each other with some details.