光纤环的每层匝数不同对光纤陀螺温度性能影响  

Effect of turns' difference in each layer on temperature performance of fiber optic gyroscope

作　　者：冯文帅[1] 王学锋[1] 王巍[1] 

机构地区：[1]北京航天时代光电科技有限公司,北京100854

出　　处：《中国惯性技术学报》2011年第4期487-493,共7页Journal of Chinese Inertial Technology

基　　金：国防基础科研计划支持项目(C0320060532)

摘　　要：通过深入研究光纤环的每层匝数不同这种情况,实现了改善光纤陀螺温度性能的目的。论文对光纤陀螺的Shupe误差进行了以匝为单位的量化分析。相对于光纤环温度分布Mohr模型,建立了更为合理的基于已知边界温度条件的插值型光纤环温度分布模型。针对四极对称绕制的光纤环,根据光纤环绕制中可能存在的三种最外两层匝数不同的情况,建立了不同最外两层匝数的光纤陀螺Shupe误差量化模型。根据论文建立的光纤环温度分布模型,理论研究了径向温度激励下光纤环最外两层匝数不同对陀螺性能的影响,设计并实现了无骨架光纤环最外两层匝数不同对陀螺温度性能影响的检测系统。经试验验证,光纤环最外两层绕制一半时陀螺热致速率误差减小了50%以上,与理论研究的结果一致。By studying the turns＇ difference in each layer of fiber coil,the improvement of FOG＇s temperature performance is realized.A new turn-by-turn quantization Shupe bias error model is established.Comparing Mohr temperature distribution models of fiber coils,an interpolation model based on the known temperature boundary condition is proposed.The quantization Shupe bias error models are established whose number of turns of the two outermost layers is different from other layers.Based on the temperature distribution models mentioned above,the effects of three kinds of corresponding fiber coils on the temperature performance of FOG are simulated under the radial temperature gradient respectively.A measuring system is designed to verify the effect.Experiment results show that the Shupe bias errors of the two outermost layers of fiber coils is reduced at least 50% when with half turns,and this agrees with the results of theoretical study.

关 键 词：光纤陀螺 光纤环 Shupe误差 温度模型 

分 类 号：U666.1[交通运输工程—船舶及航道工程]