轻微非共面腔的磁效应特性研究  

Research of Magnetic Effect in Little Non-Planar Resonators

作　　者：许光明[1] 王飞[1] 宋建文[1] 

机构地区：[1]国防科学技术大学光电科学与工程学院,湖南长沙410073

出　　处：《光学学报》2013年第5期161-165,共5页Acta Optica Sinica

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.

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 

分 类 号：V241.558[航空宇航科学与技术—飞行器设计]