Design and implementation of inertial measurement unit for satellites based on hemispherical resonant gyroscopes

被引：0
|
作者：
Sun Y. [1 ]
Xie W. [1 ]
Xue Z. [2 ]
Han S. [3 ,4 ]
Yi G. [1 ]
Wang Z. [2 ]
机构：
[1] Space Control and Inertial Technology Research Center, Harbin Institute of Technology, Harbin
[2] HIT(ANSHAN) INSTITUTE OF INDUSTRIAL TECHNOLOGY, Anshan
[3] The 26th Institute of China Electronics Technology Group Corporation, Chongqing
[4] Chongqing Engineering Laboratory of Solid Inertial Technology, Chongqing
来源：
Zhongguo Guanxing Jishu Xuebao/Journal of Chinese Inertial Technology | 2022年 / 30卷 / 02期
关键词：
Hemispherical resonant gyroscopes; Inertial measurement unit; Mechanical environment test; Microsatellite application;
D O I：
10.13695/j.cnki.12-1222/o3.2022.02.002
中图分类号：
学科分类号：
摘要：
Hemispherical resonance gyroscope (HRG) is a new type of solid vibration gyro, with the characteristics of low power consumption, long service life and high stability, which can perfectly adapt to the attitude control of satellites. To meet the requirements of microsatellites application, HRGs are used to construct the inertial measurement unit (IMU) for satellites. Firstly, the hardware structure of the IMU is designed to optimize its internal space, and the mechanical reliability is verified by mechanical characteristics and mechanical test simulation analysis. Secondly, the circuits are optimized for microsatellite application environment to improve the reliability of the IMU. Finally, the results of mechanical environment test show that the zero-bias stability of the HRG on three axes are all better than 0.1 °/h, besides, the sensitive device meets the demands that the nonlinearity of scale factor is lower than 0.1 °/h and the zero bias stability is lower than 0.1 °/h (1σ). In conclusion, a low-cost, small volume and high reliable IMU for satellites based on HRGs is completed to meet the needs of small satellite applications. © 2022, Editorial Department of Journal of Chinese Inertial Technology. All right reserved.
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页码：148 / 153
页数：5
相关论文
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