基于抽运光频率优化的原子陀螺仪光频移抑制方法研究  

Light Shift Suppression Method Based on Pumping Light Frequency Optimization in Compact Atomic Gyroscopes

作　　者：贾雨棽 李彦欣 安广齐 刘岩 JIA Yuchen;LI Yanxin;AN Guangqi;LIU Yan(Beijing Institute of Spacecraft System Engineering,Beijing 100094)

机构地区：[1]北京空间飞行器总体设计部,北京100094

出　　处：《飞控与探测》2024年第6期23-28,共6页Flight Control & Detection

摘　　要：光频移引起的误差对原子陀螺仪有重大影响,为在小型化原子陀螺仪中抑制该误差,提出了一种基于抽运光频率优化的光频移抑制方法。首先,通过理论和实验证明了电子共振曲线的对称性受光频移的影响。通过测量不同抽运光频率下的电子共振曲线,并将抽运光频率调整至电子共振曲线对称性最好,可以得到最小的光频移,从而抑制光频移误差。最后通过理论和实验证明了该方法对抑制抽运光频移的有效性。在实验中可以方便地获得电子共振曲线,不需要额外的部件,因此该方法直观且操作方便,适用于小型化原子陀螺仪。The error caused by light shift has a significant impact on atomic gyroscopes.In order to suppress the error in compact atomic gyroscopes,we put forward a light shift suppression method based on the optimization of the pump light frequency.Firstly,it is demonstrated theoretically and experimentally that the symmetry of the electronic resonance curve is influenced by the light shift.Therefore,we proposed to optimize light frequency to obtain the symmetric resonance curve,and at this point,the pumping light shift error can be suppressed.Finally,the effectiveness of the method is proved theoretically and experimentally.Because the electronic resonance curve is easy to obtain in the experiment and no extra components are required,this method is intuitive and convenient in operation,thus it is appropriate to be implemented in compact atomic gyroscopes.

关 键 词：小型化原子陀螺仪 光频移 电子共振 

分 类 号：TH744[机械工程—光学工程] TH89[机械工程—仪器科学与技术]