高精度激光陀螺仪温度补偿模型研究

Research on the Temperature Compensation Model of High Precision Ring Laser Gyro

在实际工程中,高精度激光陀螺仪的输出零偏会随着温度变化发生漂移,限制了其应用。为了降低和补偿温度对陀螺零偏的影响,提高陀螺应用性能,降低装备成本,从探究温度对输出零偏的影响因素出发,建立了一种考虑多影响因素的温度补偿模型,并设计了相应的温度试验。试验结果表明,高精度机抖激光陀螺的零偏和温度、温变速率、温度梯度具有较好的相关性和重复性,该温度补偿模型补偿效果显著,可基本消除零偏随温度变化的趋势,有效降低武器装备对零部件的要求,能够降低应用成本,具有很强的实用价值。

In the practical engineering,the output bias of high precision ring laser gyro (RLG) drifts with the temperature change,which restricts its application.In order to reduce and compensate the effect of temperature on gyro bias,improve the application performance of gyro and reduce the cost of equipment,a temperature compensation model considering multiple factors is established based on exploring the influence factors of temperature on output bias,and the corresponding temperature test is designed.The experimental test results show that the output bias of high precision dithered RLG and temperature,temperature change rate and temperature gradient have good correlation and repeatability,the temperature compensation model can be used to compensate the effect of temperature on gyro,which can basically eliminate the bias trend with the temperature change and is good for effectively reducing the corresponding requirement of components for equipment.It can reduce the application cost and has very strong practical value.