摘要
本文首次在理论上导出消偏型光纤陀螺的零漂和标度因子表达式 ,并得出以下两个结论 :1 )在使用约 40 d B偏振器时 ,导致陀螺漂移的主要因素是强度误差而并不是振幅误差 ;2 )由光学标度因子与各种器件参量关系表明开环解调时陀螺的线性误差较大 .试验样机证明了以上结果 ,并找出减小漂移的方法 .
An analysis of the bias drift and the scale factor in the depolarized fiber optical gyros is presented in this paper.It indicates that:1)when a 40dB polarizer is used,the major reason for the bias drift of gyros is the intensity error but not the amplitude error.2)In open loop demodulation,the scale factor of the depolazed fiber gyros is larger than that of the PM fiber gyros.A method to reduce the bias drift is proved in the experiment.
出处
《光子学报》
EI
CAS
CSCD
2000年第9期810-813,共4页
Acta Photonica Sinica
基金
国家高技术计划 863项目
关键词
光纤陀螺
零漂
比例因子误差
Fiber optical gyros
Bias drift
Scale factor error
