Optimization and analysis of novel piezoelectric solid micro-gyroscope with high resistance to shock
Abstract
In this paper, a novel piezoelectric solid micro-gyroscope with high resistance to shock is optimized and researched. The operation principle of our novel gyroscope is given and the effect of driving method on reference vibration is analyzed. In addition, performances of the optimal reference vibration (ORV) with different driving methods are compared and the most effective one is obtained for improving the sensitivity. We also propose several novel structures of single-axis and double-axis gyroscopes and the optimized ones are selected which improve the sensitivity further. Moreover, the effective movement ratio is discussed and taken as a standard for choosing the optimized structure. The ORV of the optimized structure is monitored that is crucial for compensating errors. The detecting system is designed and modulation/demodulation method is studied. The simulation results of sensing angular velocity for single-axis and double-axis gyroscopes are 4.530875 and 0.927817 mv/(deg s), respectively.
Keywords
Angular Velocity Coriolis Force Displacement Amplitude Voltage Amplitude Mass ElementNotes
Acknowledgments
Financial support for this research from the PLA General Armament Department (9140A09020507JW0301), National Natural Science Foundation of China (50805096/E051202) and SMC Foundation of Shanghai Jiao Tong University (T241460622) is gratefully acknowledged.
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