Principle : the profiler optics is a non-contact measuring system used to evaluate with extreme accuracy the state of the surface (profiling and topography), roughness and contour of a given piece, regardless of its shape (flat, convex, convex…), its texture, its size or its weight.
the majority of profilers non-contact are fitted with a built-in controller (compact) to allow for a measure ” all the angles “. the easy moving and positioning assistance in obtaining a topography 3d (or even 4d on some modules) to the micro scale or nanoscale.
there are several technologies used in profilometry optical, but the most common among manufacturers are the change in focal length, the confocal microscopy, the white light interferometry, holography, and the tdr by projection of structured light.