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Surface roughness or simply roughness is the quality of a surface of not being smooth and it is hence linked to human perception of the surface texture. From a mathematical perspective it is related to the spatial variability structure of surfaces, and inherently it is a multiscale property.
Novacam's fiber-based optical profilometers and Optical Coherence Tomography (OCT) systems are based on low coherence interferometry. The fiber-based nature of Novacam's detector probes is unique in the optical metrology industry. [1] [2] [3] Novacam is a privately owned Canadian company that makes precision optical measuring instruments.
Surface metrology is the measurement of small-scale features on surfaces, and is a branch of metrology.Surface primary form, surface fractality, and surface finish (including surface roughness) are the parameters most commonly associated with the field.
A white light scanner (WLS) is a device for performing surface height measurements of an object using coherence scanning interferometry with spectrally-broadband, "white light" illumination. Different configurations of scanning interferometer may be used to measure macroscopic objects with surface profiles measuring in the centimeter range, to ...
The interference occurs for white light when the path lengths of the measurement beam and the reference beam are nearly matched. By scanning (changing) the measurement beam path length relative to the reference beam, a correlogram is generated at each pixel. The width of the resulting correlogram is the coherence length, which depends strongly ...
Non-Contact Optical Profilometer A contact profilometer at LAAS technological facility in Toulouse, France.. A profilometer is a measuring instrument used to measure a surface's profile, in order to quantify its roughness.
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