Thermal effects impose the greatest limit on the precision of a ring laser gyro (RLG). Selections of temperature sensing points were comparatively discussed based on large numbers of experimental data to improve its precision, and the optimum combination was selected to establish a practical compensating model. The model is applied to new experimental data under the given and varied temperatures. Results show that the bias trend changing with the temperature is basically eliminated and the bias stability is enhanced significantly.
© 2006 Chinese Optics Letters
(060.2800) Fiber optics and optical communications : Gyroscopes
(070.6020) Fourier optics and signal processing : Continuous optical signal processing
(120.6780) Instrumentation, measurement, and metrology : Temperature
(120.6810) Instrumentation, measurement, and metrology : Thermal effects
(140.3370) Lasers and laser optics : Laser gyroscopes
Chuang Guo, Yongjun Xu, and Xiaoning Zhao, "Investigation on the temperature compensating model for ring laser gyroscope," Chin. Opt. Lett. 4, 576-579 (2006)