Fiber Optic Gyroscope Temperature Drift And Compensation Study

The accuracy of the Fiber Optic Gyroscope (FOG) is primarily affected by temperature bias. This paper is focused on the study of the cause, the regularity and the compensation method of FOG temperature bias.At first, the paper determines the main factors of FOG temperature bias by studying the working principle of FOG and the thermal specific property of the main opticators of FOG. And the paper gives a form of temperature error mode.On the base of the theory analysis, we comprehended the states of FOG bias in various temperature environment. And we got the experiment data. Then we gave a method of FOG temperature error compernsation.At last, we tested the practicability of the compensation method and looked forward to the later study work.