测试设备对高精度光纤陀螺误差的影响与抑制措施

The impact and inhibitory measures of the test equipment on the high -precision optical fiber gyroscope error

摘要:

测试设备产生的误差是高精度光纤陀螺误差重要的来源,限制了光纤陀螺精度的进一步提升。本文基于转台、工装、时间基准源等测试设备对光纤陀螺的误差进行了分析,通过仿真分析和实验分别研究了其对高精度光纤陀螺误差的影响程度,并提出了改进和抑制方法。经过改进,工装产生的零偏误差减小了三分之二,转台产生的标度因数绝对误差以及时间基准产生的标度因数重复性误差减少了一个量级,为高精度光纤陀螺仪精度提升以及测试改进提供了指导。

Abstract:

The error generated by the test equipment is an important source of the error of the high-precision fiber optic gyroscope, which limits the further improvement of the accuracy of the fiber optic gyroscope. This paper analyzes the error of the fiber optic gyroscope based on the test equipment such as turntable, tooling, time reference source, etc., and studies its influence on the error of the high-precision fiber optic gyroscope through simulation analysis and experiment, and proposes improvement and suppression methods. After improvement, the zero offset error generated by the tooling has been reduced by two-thirds, the absolute error of the scale factor generated by the turntable and the repeatability error of the scale factor generated by the time reference have been reduced by an order of magnitude, improving the accuracy of high-precision fiber optic gyroscopes. As well as testing improvements provides guidance.