摘要
激光陀螺应用过程中磁效应引起零偏的变化对陀螺精度会产生重要影响。对于激光陀螺的磁效应,建立了理论模型,分析了产生磁效应的诸多因素。分析结果表明,谐振腔光路的轻微非共面是激光陀螺磁敏感产生的主要原因,可以通过调整一个腔平移镜的轴线方向来减小光路的非共面角,进而达到减小激光陀螺磁灵敏度的目的,并通过实验验证了上述结论。
Magnetic effects in the laser gyro application process can cause a change of the bias stability of gyro, which will have a major impact on gyro accuracy. The theoretical model about the magnetic effect of the laser gyro is established to analyze factors which generate the magnetic effect. Analyzing result shows that the little non-coplanar optical path in the laser gyro magnetic effects is the main reason of magnetic sensitivity. Magnetic effects of laser gyro can be decreased by adjusting the axial direction of a cavity pan mirror to reduce the optical path of non-coplanar angle. The above conclusions are proved by the experiment.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2013年第5期161-165,共5页
Acta Optica Sinica
关键词
激光技术
激光陀螺
磁灵敏度
零偏
轻微非共面腔
非共面角
laser technique
laser gyro
magnetic sensitivity
bias little non-planar resonators
non-planar angle
