Magnetic shield design and realization for Zeeman laser gyroscope

LIU Yuan-zheng;WANG Wei-ke;TAO Bo-liang;XUE Xiang-qian

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    Published By: Journal of Applied Optics

    CN 61-1171/O4

Journal of Applied Optics ›› 2010, Vol. 31 ›› Issue (5) : 814-818.

Magnetic shield design and realization for Zeeman laser gyroscope

  • LIU Yuan-zheng,WANG Wei-ke,TAO Bo-liang,XUE Xiang-qian
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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.

Key words

Zeeman biasing / laser gyroscope / shield efficiency

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LIU Yuan-zheng, WANG Wei-ke, TAO Bo-liang, XUE Xiang-qian. Magnetic shield design and realization for Zeeman laser gyroscope. Journal of Applied Optics. 2010, 31(5): 814-818

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