Abstract: Angle is the basic parameter of geometric measurement,and the results of angle measurement affect the accuracy of measurement,detection and calibration.With the progress of precision machining and manufacturing technology,optical gyroscopes are widely used in the measurement and calibration of dynamic angles,and play an important role in inertial measurement with the advantages of high precision,good reliability and fast response speed.The basic working principle of optical gyroscope is introduced,the research status of optical gyroscope angle measurement technology at home and abroad is expounded,and the application of ring laser dynamic goniometer and angular velocity standard device in angle measurement is introduced.Nowadays,optical gyrometer goniometry is developing rapidly in the direction of digitalization,automation and intelligence,and future research will further improve the sensitivity,stability and dynamic performance of angle measurement.

Key words: Optical gyroscope, Angle measurement, Precision, Bias stability