一种具有0.00753°/h偏置不稳定性的高性能积分速率半球谐振陀螺仪

Yongmeng Zhang, Sheng Yu, Kechen Guo, Jiangkun Sun, Xuezhong Wu, D. Xiao
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引用次数: 3

摘要

本文报道了一种高性能速率积分半球面谐振陀螺仪(HRG)。在对各向异性刚度、各向异性阻尼以及检测增益和驱动增益误差进行补偿后,HRG的频率失配和角相关偏置漂移(ADB)分别在2mHz ~ 0.3mHz和0.01°/s ~ 0.0022°/s范围内降低了约85%和78%。最后,HRG具有0.00753°/h的优异偏置不稳定性,高输入范围超过±2600°/s,非线性较小,阈值小于±0.001°/s。
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A High-Performance Rate-Integrating Hemispherical Resonant Gyros with 0.00753°/h Bias Instability
This paper reports a high performance rate-integrating Hemispherical Resonant Gyroscope (HRG). After the compensation on the anisostiffness, anisodamping and detection and actuation gain errors, the frequency mismatch and angle-dependent bias drift (ADB) of HRG reduce about 85% from 2mHz to 0.3mHz and 78% from 0.01°/s to 0.0022°/s, respectively. Finally, HRG shows excellent bias instability of 0.00753°/h, high input range of over ±2600°/s with small nonlinearity of 17ppm and a threshold value of less than ±0.001°/s.
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