表面粗糙度是加工参数变化的一个重要标志,对于自动蛾加工的控制有着重要的作用。大多数粗糙度测量仪器都必须与被测零件表面相接触, 即测头必须在零件表面上拖过,记录与分析微小的偏移量。因此,人们多年来致力于采用光学法来测量粗糙度,以避免物理接触的问题。 Surface roughness is an important indicator of the variation of processing parameters, which plays an important role in the control of automatic moth processing. Most roughness measuring instruments must be in contact with the surface of the part under test, ie the probe must be dragged across the surface of the part to record and analyze minute offsets. Therefore, people have been devoting themselves to using optical methods for measuring roughness for many years to avoid the problem of physical contact.