冷原子陀螺仪二维磁场系统容差设计研究  

A Tolerance Design Method for Two-Dimension Magnetic Field System of Cold Atom Gyroscopes

作　　者：李攀[1] 刘元正[1] 王继良[1] 严吉中[1] 

机构地区：[1]西安飞行自动控制研究所,陕西西安710065

出　　处：《压电与声光》2017年第2期228-235,共8页Piezoelectrics & Acoustooptics

基　　金：总装十二五航空支撑基金资助项目(61901060301)

摘　　要：磁场系统作为磁光阱的重要组成部分,在高精度冷原子陀螺仪中占着重要地位。随着陀螺体积的减小和集成度的提高,磁场系统的制造和装调误差对陀螺性能的影响不断增大。这些误差将引起磁场零点漂移和磁场梯度变化,降低捕获效率和原子团的质量,从而影响陀螺性能。该文通过理论分析对二维磁场系统的主要制造和装调误差进行了筛选,并利用实验设计和Ansoft仿真完成了"虚拟"实验。基于实验结果的数学回归,对关键制造和装调参数设计了合理的容差限,并进行了试制验证。该工作为小型化冷原子陀螺仪二维磁场系统的设计和制造提供了理论指导。As one key part of the magneto-optical trap,the magnetic system occupies an important position in high precision cold atom gyroscope.With the continuous decrease of gyroscope volume and improvement of integration,the effect of fabricating and assembly errors of magnetic system on gyroscope performance is constantly increasing.These errors will cause the magnetic field zero drift and field gradient change,reduce work efficiency and quality of cold atom clouds,ultimately affect the gyroscope performance.The main manufacturing and assembly errors of the two-dimension magnetic field are selected by theoretical analysis,and the＂virtual＂experiments are completed via the experimental design and Ansoft simulation.Based on mathematical regression of the experimental results,the reasonable tolerance limit of key manufacturing and assembly parameters are designed and the validation of the trial manufacture is carried out.The theoretical direction for the design and manufacture of the two-dimension magnetic system of the miniaturized cold atom gyroscope are provided.

关 键 词：冷原子陀螺仪 磁光阱 磁场系统 误差分析 容差设计 

分 类 号：TM142[电气工程—电工理论与新技术] U666.1[交通运输工程—船舶及航道工程]