塞曼激光陀螺磁屏蔽设计与实现

刘元正; 王维科; 陶伯良; 薛向前

塞曼激光陀螺磁屏蔽设计与实现

1.
中航工业飞行自动控制研究所,陕西西安710065

详细信息

通讯作者:
刘元正(1975-)，男，山东莱阳人，高级工程师，硕士，主要从事激光陀螺技术研究工作。

中图分类号: TN248.2
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出版历程
- 刊出日期: 2010-09-15

Magnetic shield design and realization for Zeeman laser gyroscope

1.
The Flight Automatic Control Research Institute of AVIC,Xi’an 710065,China

摘要

摘要: 为提高塞曼激光陀螺精度，分析了塞曼激光陀螺磁的磁敏感特性，指出敏感轴方向是塞曼激光陀螺的最大磁灵敏度方向，该方向为产生磁误差的主要方向。研究了低频磁场屏蔽理论与加工工艺关键技术，结合激光陀螺的环境适应性要求，实现了固态激光陀螺磁屏蔽结构。在三轴磁试验台上进行了陀螺磁敏感性测试，陀螺磁灵敏度值减少到原来的1/1000，实测系数达到2.0()/(hmT)，该值满足中等精度激光陀螺的实用要求。
- 激光陀螺 /
- 屏蔽效能 /
- 塞曼偏频
Abstract: In order to improve the performance of Zeeman laser gyroscope, its magnetic sensitive characteristics were investigated. It was found that the gyro sensitive axis was the most bias magnetic sensitive axis, which resulted in the primary magnetic errors. Based on the low frequency magnetic shield theory and the key processes, the magnetic shield structure adapted to the laser gyro operation environment was manufactured. By testing it in the threeaxis magnetic system, it was found that the magnetic sensitivity of Zeeman laser gyro was decreased to 1/1000 of the original value. The magnetic sensitivity coefficient reached 2.0()/(hmT), which satisfied the requirements of middle precision guidance system.
- laser gyroscope /
- shield efficiency /
- Zeeman biasing

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参考文献(1)

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