1. The measurement speed is extremely fast, and the drawing, measurement and tolerance evaluation of less than 100 dimensions can be completed within 2 to 5 seconds, and the efficiency is dozens of times that of the traditional quadratic image measuring instrument.
2. Abbe error which is affected by the increase of measurement stroke is avoided. The repeated measurement accuracy is high, which solves the phenomenon of poor consistency of repeated measurement data of the same product.
3. The instrument has a simple structure, does not require displacement ruler grating ruler, and does not need to move the workbench during the measurement process, so the stability of the instrument is very good.
4. Since the precision scale is the pixel of the CCD camera, and the pixel does not change with time, nor is it affected by temperature and humidity, the accuracy of the instrument is relatively stable, and the measurement accuracy can be automatically calibrated through software.