Abstract: In the mass production manufacturing industry represented by the automotive industry, the two-dimensional measurement of the microstructure of the workpiece surface is still in the mainstream position so far, which is mainly determined by the process used and the established perfect evaluation system. However, in recent years, with the increasing application of new techniques such as laser modeling in some important processes, the three-dimensional measurement of surface microstructures has also entered a practical stage. This article introduces the relevant evaluation parameters and adopts examples respectively Traditional detection methods and advanced automatic zoom optical methods have been described for three-dimensional measurement.
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