A novel cobweb-like disk resonator gyroscope(CDRG)is introduced in this paper,which integrates a multi-bit electromechanical sigma-delta modulation(ΣΔΜ)system to significantly expand the input angular rate signal r...A novel cobweb-like disk resonator gyroscope(CDRG)is introduced in this paper,which integrates a multi-bit electromechanical sigma-delta modulation(ΣΔΜ)system to significantly expand the input angular rate signal range,improving performance metrics like signal-to-noise ratio(SNR)and noise reduction.This design seeks to overcome the limitations associated with single-bitΣΔΜgyroscope systems by incorporating a linear multi-bit force feedback mechanism that utilizes nonlinear actuators driven by pulse density modulation.The proposed gyroscope system effectively broadens the input range without necessitating higher actuation voltages.In the absence of electronic trimming,experimental findings indicate significant enhancements in performance metrics:the input range,angle random walk,and bias instability improved by 30%,106.2%,and 487.9%,respectively,when compared to traditionalΣΔΜCDRG system configurations.展开更多
基金supported in part by the National Key Research and Development Program of China under Grant No.2022YFB3205000 and 2022YFB3205004in part by the National Natural Science Foundation of China under Grant No.61974156,61504159,and 61674160+1 种基金in part by the Natural Science Foundation of Hunan province(2025jj50082)the Key Project of Hunan Provincial Department of Education(24A0291).
文摘A novel cobweb-like disk resonator gyroscope(CDRG)is introduced in this paper,which integrates a multi-bit electromechanical sigma-delta modulation(ΣΔΜ)system to significantly expand the input angular rate signal range,improving performance metrics like signal-to-noise ratio(SNR)and noise reduction.This design seeks to overcome the limitations associated with single-bitΣΔΜgyroscope systems by incorporating a linear multi-bit force feedback mechanism that utilizes nonlinear actuators driven by pulse density modulation.The proposed gyroscope system effectively broadens the input range without necessitating higher actuation voltages.In the absence of electronic trimming,experimental findings indicate significant enhancements in performance metrics:the input range,angle random walk,and bias instability improved by 30%,106.2%,and 487.9%,respectively,when compared to traditionalΣΔΜCDRG system configurations.
