测试设备对高精度光纤陀螺误差的影响及抑制方法研究  

Research on the Influence and Suppression Method of Test Equipment on High-Precision FOG

作　　者：曹康渊 丁东发 冯文帅[2] 范梓涵 于海成[2] CAO Kangyuan;DING Dongfa;FENG Wenshuai;FAN Zihan;YU Haicheng(Beijing Institute of Aerospace Control Instruments,Beijing 100039,CHN;Beijing Aerospace Times Optoelectronics Technology Co.Ltd.,Beijing 100094,CHN)

机构地区：[1]北京航天控制仪器研究所,北京100039 [2]北京航天时代光电科技有限公司,北京100094

出　　处：《半导体光电》2022年第4期744-751,共8页Semiconductor Optoelectronics

摘　　要：分析了影响光纤陀螺仪测试精度的主要误差因素,详细研究了速率转台、测试工装、时间基准源等常见测试设备对光纤陀螺误差的影响。提出了基于高精度计数器对于转台精度评价结合长周期、转台固定周数的测试等抑制方法。实验结果表明,采取抑制措施后,测试工装误差引起的零偏测试误差减小了66.7%,速率转台误差引起的标度因数绝对误差以及时间基准误差引起的标度因数重复性误差均减小了一个数量级。研究结果对高精度光纤陀螺仪精度的提升以及测试设备的改进具有指导意义。The main error factors affecting the accuracy of interferometric fiber optic gyroscopes(I-FOGs)were firstly analyzed.Subsequently,the influence of test equipment,such as angular rate turntable,test fixture and time reference source,on the error of I-FOGs were researched.Finally,a suppression method based on the high-precision counter for the accuracy evaluation of the turntable combined with the long-period and fixed-cycle test method of the turntable was proposed.With this method,the experimental results demonstrate that the zero bias test error caused by the test fixture error is reduced by 66.7%,both the scale factor absolute error caused by angular rate turntable error and the scale factor repeatability error caused by time reference error are reduced by an order of magnitude.This research is of great significance to the experimental equipment improvement and accuracy improvement of I-FOGs.

关 键 词：光纤陀螺 高精度 测试设备 误差抑制 

分 类 号：TN253[电子电信—物理电子学] TP212.14[自动化与计算机技术—检测技术与自动化装置]