Laser dynamic angle-measuring system

Dynamic angle measuring system has various utilities, and its technology is hard to realize. The dynamic angle measuring system using ring laser sensor (RLS) shows many advantages such as high accuracy, high speed, simple structure and easiness of operation, etc. We used output of RLS as the velocity feedback. The control system controls the table to rotate at a constant speed. Optical zero pointing sensor converts the reflecting light into electrical impulse to control the counter. Through many times of measurement and data processing in the computer, the repeated measurement accuracy reaches ±0.2 arcsec.