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Design of a Disk Resonator Gyroscope With High Mechanical Sensitivity by Optimizing the Ring Thickness Distribution.

Authors :
Xiao, Dingbang
Zhou, Xin
Li, Qingsong
Hou, Zhanqiang
Xi, Xiang
Wu, Yulie
Wu, Xuezhong
Source :
Journal of Microelectromechanical Systems; Aug2016, Vol. 25 Issue 4, p606-616, 11p
Publication Year :
2016

Abstract

In this paper, we present the mechanical sensitivity improvement of a disk resonator gyroscope (DRG) by optimizing the thickness distribution of the nested rings. The mechanical sensitivities of the DRGs with uniform, linearly changing, and step changing rings have been simulated. The results suggest that the ring thickness distribution has great influence on the performance of the DRG. Then, the optimized ring thickness distribution was obtained by using the traditional method of moving asymptotes (MMA), which result in a 24% improvement of the mechanical sensitivity. Finally, the bio-inspired particle swarm optimization (PSO) algorithm has also been used. The optimization results of PSO coincide well with that of MMA, and the optimized result is the global optimum. Meanwhile, the optimized distribution rules can be used on the series of DRGs and the optimization methods can be widely used on other microelectromechanical systems (MEMS) devices. [2015-0310] [ABSTRACT FROM PUBLISHER]

Details

Language :
English
ISSN :
10577157
Volume :
25
Issue :
4
Database :
Complementary Index
Journal :
Journal of Microelectromechanical Systems
Publication Type :
Academic Journal
Accession number :
117145696
Full Text :
https://doi.org/10.1109/JMEMS.2016.2558197