Required measurement glass (as shown below)

Since the glass is a transparent object, it is only necessary to use uniaxial contour scanning. This time, through observing the measured object, the D55A48 adopted with H4UY single-channel controller, D55A48, has the characteristics of large range, the maximum measurement Angle is ±48°, which is very suitable for objects with large amplitude and large range.

It can be seen from the measurement that the distance from the glass surface to the arc height and the pattern are measured, and the dynamic repetition accuracy of the product is 1.124 microns for 5 repeats and 20 times.