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A Self-Oscillating Driving Circuit for Low-Q MEMS Vibratory Gyroscopes.
Han, Tian; Wang, Guanshi; Dong, Changchun; Jiang, Xiaolin; Ren, Mingyuan; Zhang, Zhu.
Afiliación
  • Han T; Department of Artificial Intelligence, Jinhua Advanced Research Institute, Jinhua 321013, China.
  • Wang G; Development Strategy Research Center, China Electronics Technology Group, Beijing 100846, China.
  • Dong C; Department of Artificial Intelligence, Jinhua Advanced Research Institute, Jinhua 321013, China.
  • Jiang X; Department of Artificial Intelligence, Jinhua Advanced Research Institute, Jinhua 321013, China.
  • Ren M; Department of Artificial Intelligence, Jinhua Advanced Research Institute, Jinhua 321013, China.
  • Zhang Z; Department of Artificial Intelligence, Jinhua Advanced Research Institute, Jinhua 321013, China.
Micromachines (Basel) ; 14(5)2023 May 16.
Article en En | MEDLINE | ID: mdl-37241680
This article establishes a circuit model with which to analyze the difficulty of auto-gain control driving for low-Q micromechanical gyroscopes at room temperature and normal pressure. It also proposes a driving circuit based on frequency modulation to eliminate the same-frequency coupling between the drive signal and displacement signal using a second harmonic demodulation circuit. The results of the simulation indicate that a closed-loop driving circuit system based on the frequency modulation principle can be established within 200 ms with a stable average frequency of 4504 Hz and a frequency deviation of 1 Hz. After the system was stabilized, the root mean square of the simulation data was taken, and the frequency jitter was 0.0221 Hz.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Micromachines (Basel) Año: 2023 Tipo del documento: Article País de afiliación: China Pais de publicación: Suiza
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Micromachines (Basel) Año: 2023 Tipo del documento: Article País de afiliación: China Pais de publicación: Suiza