Study on digital correlation demodulation technology of micro quartz tuning fork gyroscope

Zhixiong Zhang; Lihui Feng; Yu-nan Sun

doi:10.1117/12.869705

9 November 2010 Study on digital correlation demodulation technology of micro quartz tuning fork gyroscope

Zhixiong Zhang, Lihui Feng, Yu-nan Sun

Proceedings Volume 7853, Advanced Sensor Systems and Applications IV; 785328 (2010) https://doi.org/10.1117/12.869705
Event: Photonics Asia 2010, 2010, Beijing, China

Abstract

A signal demodulation scheme for micro quartz tuning fork gyroscope based on digital correlation demodulation technology is proposed. In the operation of quartz gyroscope the reference signal should be in the resonance state with steady amplitude and the reference signal should be in-phase and has the same frequency with the driving signal. The quartz gyroscope signal processing platform is designed on the foundation of DEC6713 DSP development board successfully. The adaptive algorithm including the reference signal frequency tacking, the amplitude automatic gain controlling, the reference signal phase locking, and complex correlation demodulation are devised, and the algorithm is programmed. It is proved that the digital signal process scheme is feasible by means of experimentation.

Citation Download Citation

Zhixiong Zhang, Lihui Feng, and Yu-nan Sun "Study on digital correlation demodulation technology of micro quartz tuning fork gyroscope", Proc. SPIE 7853, Advanced Sensor Systems and Applications IV, 785328 (9 November 2010); https://doi.org/10.1117/12.869705

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