Quadrature Drift Mechanism and Control of Bell-shaped Vibratory
Quadrature drift is the major error source of the bell-shaped vibratory angular rate gyro (abbreviated as BVG),and effective measures must been taken to eliminate it.The aim of this study wants to investigate the quadrature drift mechanism of BVG,in particular the closed-loop control method.The quadrature drift mechanism is deduced in detail on the basis of the equivalent dynamic model,drew a conclusion that the main factor caused quadrature error is frequency split.Quadrature control loop is designed by selecting appropriate electrodes to exert force,and suitable error signal to be error feedback signal.The simulation and experiment both verified the availability of the quadrature control method.The work in this paper will contribute to the system design of BVG.
BVG quadrature drift quadrature control loop
Ma Xiaofei Su Zhong Li Qing Liu Hong Liu Ning
School of Automation,Beijing Institute of Technology,Beijing,100084,P.R.China;Beijing Key Laboratory Beijing Key Laboratory of High Dynamic Navigation Technology,Beijing Information Science & Technolog
国际会议
The 33th Chinese Control Conference第33届中国控制会议
南京
英文
593-597
2014-07-28（万方平台首次上网日期，不代表论文的发表时间）