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ISO 25178: Geometrical Product Specifications (GPS) – Surface texture: areal is an International Organization for Standardization collection of international standards relating to the analysis of 3D areal surface texture.
For small steps and requirements to do 3D scanning, because the non-contact profilometer does not touch the surface the scan speeds are dictated by the light reflected from the surface and the speed of the acquisition electronics. For doing large steps, a 3D scan on an optical profiler can be much slower than a 2D scan on a stylus profiler.
Version 7.4 (January 2017) offers 3D reconstruction from a single SEM image, and enhanced 3D printing [24] Version 8.0 (June 2019) is the successor of both Mountains 7.4 and SPIP 6.7 software packages ("SPIP" standing for "Scanning Probe Image Processor") after the acquisition by Digital Surf of the Danish company Image Metrology A/S, the ...
Skin surface measurement for cosmetics and medicine; Body shape measurement; Forensic science inspections; Road pavement structure and roughness; Wrinkle measurement on cloth and leather; Structured Illumination Microscopy; Measurement of topography of solar cells [9] 3D vision system enables DHL's e-fulfillment robot [10]
As is the case with all optical techniques, the interaction of light with the sample for this instruments is not fully understood. This means that measurement errors can occur especially for roughness measurement. [4] [5] Digital Holography: this method provides 3D topography with a similar resolution as interferometry.
Areal roughness parameters are defined in the ISO 25178 series. The resulting values are Sa, Sq, Sz,... Many optical measurement instruments are able to measure the surface roughness over an area. Area measurements are also possible with contact measurement systems. Multiple, closely spaced 2D scans are taken of the target area.
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