在现代化战争**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, 11 s。

In modern war weapons and inertial navigation systems, the fiber optic gyro (FOG) is required to start quickly. The effect of temperature on the scale factor error in the process of FOG startup is studied. The FOG startup time is closely related to the output performance of a superluminescent diode (SLD). The effect of the SLD output wavelength on the FOG scale factor error is studied, and the theoretical results are analyzed in simulation and verified experimentally. The results show that the change of SLD output wavelength caused by the temperature change seriously affect the scale factor error in the process of FOG startup. The larger the temperature change is, the larger the scale factor error in the process of FOG startup is. The maximum scale factor error is up to 0.048, 0.0144, 0.025 when the temperature is -20, 50, 70 ℃, and the startup time is up to 6, 7, 11 s respectively.