A system for measuring high-reflective sculptured surfaces using optical noncontact probe

With the development of industry more and more high-reflective sculptured surfaces are required to be measured quickly and accurately. For solving this problem a new optical probe with three incidence lights and a receptor has been developed. Two polarizing plates with mutually perpendicular polarizations are used to eliminate the disturbance of the specular light. A system based on 3-D coordinate measuring machine, PH10M motorized head and the new developed probe has been built. The system can track and measure the unknown free form sculptured surface automatically. Measures for improving accuracy and performance of the system are studied. The effectiveness of the proposed system has been tested by experiments.