ZHANG Linxin, WANG Junduo, SHEN Wenjiang. Disk structured MEMS gyroscope based on electrostatic tuning[J]. 2020, (5): 71-73+80. DOI: 10.13873/J.1000-9787(2020)05-0071-03.
A micro-electro-mechanical system( MEMS) gyroscope based on silicon-on-insulator( SOI) and glass anodic bonding process is designed. The main means to improve performance of the gyroscope is analyzed.Combined with actual process capability
the device with larger area of the capacitor plate is designed. Amplitude frequency response characteristics of the device is obtained by frequency scanning experiment using a vacuum chamber
a network analyzer
a transimpedance amplifier
and a DC power supply. Based on the working principle of the MEMS gyroscope
electrostatic tuning method is designed to reduce the resonant frequency split between the drive axis and the sensitive axis of the device from 293. 75 Hz to 6. 25 Hz.