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Volume 38 Issue 8
Aug.  2012
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Journal of Beijing University of Aeronautics and Astronautics  > 2012  >  38(8): 1046-1050.
Hong Lingfei, Zhang Chunxi, Feng Lishuang, et al. Investigation on scale factor and output nonlinearity in resonator micro-optic gyro[J]. Journal of Beijing University of Aeronautics and Astronautics, 2012, 38(8): 1046-1050. (in Chinese)
Citation: Hong Lingfei, Zhang Chunxi, Feng Lishuang, et al. Investigation on scale factor and output nonlinearity in resonator micro-optic gyro[J]. Journal of Beijing University of Aeronautics and Astronautics, 2012, 38(8): 1046-1050. (in Chinese)
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Investigation on scale factor and output nonlinearity in resonator micro-optic gyro

  • School of Instrument Science and Opto-electronics Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • Received Date: 28 Apr 2011
  • Publish Date: 30 Aug 2012
    Abstract
  • The output nonlinearity of the resonator micro-optic gyro (RMOG) becomes significant along with the increase of the rotation rate. The influence on the scale factor and output nonlinearity by bias-frequency-modulation rate was theoretically analyzed. Corresponding to the resonant characteristics of the RMOG, theoretical scale factor and output nonlinearity within the rotation rate range were calculated. Furthermore, analysis on scale factor error induced by temperature was carried out. RMOG experimental system was set up, with the scale factor of ~0.95. Nonlinearity of 6.88 10-4 and 0.93% in the region from 500( )/s to +500( )/s were reliably achieved in the simulated and real rotational test, expressing the output nonlinearity can be low enough for most inertial application with proper countermeasure to eliminate the influence from the environment.

     

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