在现代化战争武器和惯性导航系统中,要求光纤陀螺(FOG)快速启动。研究了温度对FOG启动过程中标度因数误差的影响。FOG的启动时间与超辐射发光二极管(SLD)的输出性能密切相关。研究了SLD输出波长对FOG标度因数误差的影响,对理论结果进行了仿真分析和实验验证。结果表明,由温度变化引起的SLD输出波长变化严重影响FOG启动过程中的标度因数误差;温度变化越大,FOG启动过程的标度因数误差越大;在-20,50,70℃时的最大标度因数误差分别可达0.048,0.0144,0.025,启动时间分别为6,7,11s。 In modern war weapons and inertial navigation systems, Fiber Optic Gyro (FOG) is required to start up quickly. The effect of temperature on the scaling factor error during FOG startup was investigated. The startup time of FOG is closely related to the output performance of the superluminescent diode (SLD). The influence of output wavelength of SLD on FOG scale factor error is studied. The theoretical results are simulated and verified by experiments. The results show that the change of SLD output wavelength caused by temperature changes seriously affect the scale factor error during FOG start-up; the larger the temperature change, the larger the error of scale factor of FOG start-up process; at -20,50 and 70 ℃ The maximum scale factor error up to 0.048,0.0144,0.025, start-up time was 6,7,11 s.