高精度光纤陀螺温度实验研究

温度是影响光纤陀螺(FOG)输出特性的主要因素,对于高精度光纤陀螺更是如此。从实验入手,在常温、低温和高温三种状态下进行研究,采用热敏电阻分别对陀螺的六个重要部位的温度进行监测,得出光纤陀螺启动阶段至稳定以后的输出曲线、零偏变化曲线、温度变化曲线。对输出曲线、零偏变化曲线、温度变化曲线分析,发现不仅光纤陀螺自身热效应会影响光纤环,而且环境温度变化也会对光纤环产生影响。针对上述现象,对陀螺采取温度控制,经实验证明,能有效地改善陀螺的输出特性。

Experiment Research of the High Precision Optical Fiber Gyroscope Temperature

The temperature is a main factor to affect the performance of the FOG,especially to the high precision FOG.The paper obtains from the experiment which was separately completed under the normal temperature,the low temperature and the high temperature three conditions.Using the thermistor separately to carry on the monitor to the top six important spot temperatures,output curve,the zero-bias change curve,the temperature variation curve of the optical fiber unloading to the stable were obtained.After analyzing the output curve,the zero-bias change curve and the temperature variation curve,some discoveries are found that not only optical fiber gyro own thermal reaction can affect the optical fiber ring,moreover the ambient temperature change also can have the influence to the optical fiber ring.According to this phenomenon,it is experimental proved that temperature control is an effective way to improve the FOG output characteristic.