Fuzzy Modeling and Compensation of Scale Factor for MEMS Gyroscope
For MEMS gyroscope, The error of scale factor is severe and therefore vital to analyze and compensate the error to improve the performance of gyroscope. Based on the operational principle of Dual Gimbaled MEMS gyroscope, it is analyzed that the physical origin of offset, nonlinear and asymmetry errors of scale factor. The error model of scale factor is proposed. The fuzzy logic, a method to compensate scale factor, is presented. The experimental results show that the dynamic raw error of gyroscope is 4053.27h (la), and error compensated by the fuzzy logic is improved to79.0°/h (la). Compared with the conventional methods of 1th order curve fitting and segmented methods, the precision of gyroscope compensated by fuzzy logic is improved 15.4 and 7.5 times respectively. It verifies the accuracy of the fuzzy model and compensation, and improves of gyroscope in dynamic maneuvering.
microelectromechanical devices scale factor error analysis compensation fuzzy logic
Li Jianli Du Min
Department of the Instrument Science and Opto electronic Engineering Beijing University of Aeronauti Department of Diseaster prevention Engineering Institute of Disaster-prevention Shanhe, Hebei Provin
国际会议
2010 International Conference on Digital Manufacturing and Automation(2010 数字制造与自动化国际会议 ICDMA 2010)
长沙
英文
765-770
2010-12-18（万方平台首次上网日期，不代表论文的发表时间）