| Issue |
MATEC Web Conf.
Volume 355, 2022
2021 International Conference on Physics, Computing and Mathematical (ICPCM2021)
|
|
|---|---|---|
| Article Number | 02012 | |
| Number of page(s) | 9 | |
| Section | Mathematical Science and Application | |
| DOI | https://doi.org/10.1051/matecconf/202235502012 | |
| Published online | 12 January 2022 | |
Analysis of orthogonal signal of dual-mass micro-machined gyroscope
1 School of Mechanical Engineering, NJUST, Nanjing 210094, China
2 The 13 th Research Institute, CETC, Shijiazhuang 050051, China
* Corresponding author: wangzhanghui19890917@njust.edu.cn
The dual-mass Silicon micro-machined gyroscope was processed by micro-fabrication technology. It could lead to quadrature coupling error and influence the output of the silicon micro-gyroscope. We select two commonly used gyroscope structures and analyze their quadrature coupling coefficient. Firstly, the complete dynamic model is proposed for the DMSG and the theoretical models of sensitivity and orthogonal signals are given by the dynamic model. Second, the influence of support structure on sensitivity and orthogonal signals are analyzed. The sensitivity and orthogonal signal of the two types of DMSG are derived and compared. The results show that the theoretical accuracy of the sensitivity and orthogonal signals can be improved about 50% and 30% after considering the support structure. The type-B gyroscope are insensitive to the Coriolis force (≈13% reduction) when compared to Type-A gyroscope. On the other hand the type-B gyroscope are insensitive to coupling stiffness (≈85% reduction) when compared to Type-A gyroscope. At last, the reliability of the theory is verified by simulations and experiments.
Key words: Dual-mass micro-machined gyroscope / Dynamic model / Orthogonal signal / Sensitivity
© The Authors, published by EDP Sciences, 2022
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