Temperature Drift Self-calibration for Honeycomb-like Disk Resonator Gyroscope

2022 IEEE International Symposium on Inertial Sensors and Systems (INERTIAL) Pub Date : 2022-05-08 DOI:10.1109/INERTIAL53425.2022.9787729

Tongqiao Miao, Yi Xu, Qingsong Li, Jiangkun Sun, Xuezhong Wu, D. Xiao, Xiaoping Hu

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引用次数: 2

Abstract

This paper reports a self-calibrating method based on the mode reversal to real-time compensation the temperature drift of Honeycomb disk resonator gyroscope (HDRG). Through analyzing the mechanism of the temperature drift and designing the experiment of verification, the temperature drift of HDRG can be effectively suppressed. It is demonstrated that the zero-rate bias (ZRB) of HDRG in turn-on period can reach 0.08 °/h (1σ) with self-calibrating method. Also, the bias stability of 1.85 °/h (1σ) is realized when the temperature is changed from 0 ℃ to 60 ℃ at the heating speed of 1 ℃/min. Interestingly, the phenomenon of nonlinear change of ZRB is observed at under variable temperature, which may be due to the thermal stress of the immature packaging of device or the modal coupling between different modes of MEMS resonator. Finally, the approach in this paper is also widely applicable to other vibration inertial sensors with symmetrical mode shapes, which may be useful for ZRB compensation on inertial sensors with high performance.

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蜂窝状圆盘谐振陀螺仪的温度漂移自校正

提出了一种基于模式反转的自校准方法，实时补偿蜂窝盘谐振陀螺仪的温度漂移。通过对温度漂移机理的分析和验证实验的设计，可以有效抑制HDRG的温度漂移。结果表明，采用自校准方法，HDRG在导通周期的零速率偏置(ZRB)可达0.08°/h (1σ)。当升温速度为1℃/min，温度从0℃变化到60℃时，可实现1.85°/h (1σ)的偏置稳定性。有趣的是，在变温度下观察到ZRB的非线性变化现象，这可能是由于器件封装不成熟的热应力或MEMS谐振器不同模式之间的模态耦合造成的。最后，本文的方法也广泛适用于其他具有对称振型的振动惯性传感器，可用于高性能惯性传感器的ZRB补偿。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2022 IEEE International Symposium on Inertial Sensors and Systems (INERTIAL)

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