Study on Temperature Stability of Scale-Factor in Closed-Loop Fiber Optical Gyroscope

Based on closed-loop fiber optical gyroscopes,research work on the temperature stability of the scale-factor has been performed.The mathematical expression of the scale-factor has been established.The mechanism of temperature influence on the stability of scale-factor was analyzed.The coefficient of some parameters was given.An experiment on the temperature stability of the scale-factor has been performed in closed-loop fiber optical gyroscopes.It can be seen from the experimental results that the temperature sensitivity of the scale-factor has been changed from 8.08×10-4/℃ to 1.70×10-5/℃.