光纤陀螺标度因数及零偏温度误差补偿研究

Temperature Compensation Research of the Scale Factor and Bias on Fiber Optic Gyroscope

关键词:  光纤陀螺  温度误差  标度因数  零偏

Key words:  Fiber optic gyroscope  Temperature error  Scale factor  Bias

摘要:

首先分析了光纤陀螺产生温度误差的机理,在此基础上分别指出标度因数与零偏的误差补偿模型,提出了一种利用一组数据同时补偿标度因数及零偏的方法,直接表示输入与标度因数零偏补偿后的关系。最后通过实验验证了该方法不仅能够有效地补偿陀螺的温度误差,且其补偿精度优于原单独补偿的方法,同时该方法仅需一次温度实验,节省实验成本,具有较大的现实意义。

Abstract:

The principles causing the temperature error of fiber optic gyroscope(FOG) are analyzed, according to which, the temperature compensation model of FOG scale factor and bias are established. A method is raised that the scale factor and bias of FOG are compensated by using a set of data. The experimental results indicate that the error of FOG can be compensated availably, and the precision of compensation is better than the original one. The method raised here only need a temperature experimentation, which can reduce the cost and be valuable to the practical applications of FOG