光纤环混合四极对称绕制方法  

Fiber coil mixed quadrupole symmetric winding method

作　　者：范运强 魏伟 黄继勋[3] 李晶[1] FAN Yunqiang;WEI Wei;HUANG Jixun;LI Jing(Beijing Aerospace Times Optical-Electronic Technology Co.,Ltd,Beijing 100094,China;The Fourth Military Representative Office of the Air Force Armament Department in Beijing,Beijing 100041,China;Beijing Aerospace Control Device Institute,Beijing 10085,China)

机构地区：[1]北京航天时代光电科技有限公司,北京100094 [2]空军装备部驻北京地区第四军事代表室,北京100041 [3]北京航天控制仪器研究所,北京100854

出　　处：《中国惯性技术学报》2021年第5期661-666,共6页Journal of Chinese Inertial Technology

基　　金：装备预研领域基金(61405170307)。

摘　　要：针对变温环境下光纤环互易性发生变化,造成光纤陀螺零偏发生漂移,从而影响工程应用精度的问题,提出了一种利用光纤环内部不同四极间温度误差相互抵消,以此提升其温度性能的混合四极对称绕制方法。首先,对光纤环进行以匝为单位的离散量化分析,获得了正负四极对称绕制的温度误差特征。其次,对几种不同绕法进行了实验测试,通过光纤环温度输出曲线与温度变化率的相关性对比分析,验证了在所提绕法中存在一种或几种最优绕法,利用该方法绕制的光纤环温度误差显著减小。最后,以仿真分析、实验修正获得的两种绕法和十六极对称绕法各绕制5只光纤环,并分别进行温度性能测试,结果显示采用混合四极对称绕制的光纤环温度性能明显较好,与十六极对称绕法相比经实验修正后的混合四极对称绕法能使光纤环温度性能提升41%。实验结果表明:所提光纤环绕法能有效提升光纤环温度性能,对工程应用具有重要的指导意义。Aiming at the problem that the fiber coil reciprocity changes and the zero deviation of the fiber optic gyroscope shifts under the condition of variable temperature,a mixed quadrupole symmetric winding method is proposed to improve the temperature performance through counteracting fiber coil temperature errors between the four layers.Firstly,the discrete quantitative analysis of fiber coil is carried out in the unit of turns,and temperature error characteristics of positive and negative quadrupole symmetric winding method are acquired.Secondly,several different winding methods are tested experimentally.By comparing and analyzing the correlation between the output curve of the fiber coil temperature and the temperature gradient,it is verified that there is one or several optimal winding methods in the proposed winding methods,which can significantly reduce the temperature error of fiber winding.Finally,two winding methods,obtained by simulation and experimental correction,and 16-polar symmetric winding method are used to wind 5 fiber coils respectively,and all fiber coils are tested separately.The results show that fiber coil with mixed quadrupole symmetry winding method is better obviously,and the modified mixed quadrupole symmetric winding method can improve fiber coil temperature performance by 41% compared with 16-polar symmetric winding method.The experimental results show that the mixed quadrupole symmetric winding method with guiding significance for engineering application can improve fiber coil temperature performance effectively.

关 键 词：光纤陀螺 光纤环 Shupe误差 混合四极对称 

分 类 号：V241.5[航空宇航科学与技术—飞行器设计]