现代防御技术2017，Vol.45Issue(4)：6-10,5.DOI:10.3969/j.issn.1009-086x.2017.04.002
去偏光纤陀螺轴向磁漂移补偿技术研究
Theory and Compensation Method of Axial Magnetic Drift for Depolarized Fiber Optic Gyro
摘要
Abstract
In an axial magnetic field (AMF) which is vertical to the plane of the fiber coil,a depolarized fiber optic gyro (D-FOG) takes on an axial magnetic drift.This drift is linearly related to the intensity of AMF BA,the length of the fiber L,the radius of the fiber coil r and the light wavelength λ.When a D-FOG is manufactured completely,this drift only displays a linear correlation with the AMF.A real time compensation model is established to eliminate the drift and the experimental results show that the axial magnetic sensitivity of the D-FOG decreased from 0.49 (°)/h/G to 0.008 (°)/h/G in 12 G AMF with two orders of magnitude decrease.关键词
去偏光纤陀螺/轴向磁场/轴向磁漂移/轴向磁场灵敏度/实时/补偿Key words
depolarized fiber optic gyro (D-FOG)/axial magnetic field (AMF)/axial magnetic drift/axial magnetic sensitivity/real time/compensation分类
航空航天引用本文复制引用
周彦汝,田慧,张登伟,舒晓武,刘承..去偏光纤陀螺轴向磁漂移补偿技术研究[J].现代防御技术,2017,45(4):6-10,5.基金项目
国家自然科学基金(61203190) （61203190）
浙江省自然科学基金(LY17F030010) （LY17F030010）
