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Design Method for a ΣΔ-Based Closed Loop Gyroscope

By Ahmed K. El-shennawy, Hassan Aboushady and Ayman El-sayed


Abstract — In this paper, we present a design method for a ΣΔ-based closed loop gyroscope. The design is based on the equivalence between electro-mechanical ΣΔ noise transfer function and the noise transfer function of conventional electrical ΣΔ. The method is applied to a fourth-order electro-mechanical ΣΔ containing the gyroscope and a second order electrical filter. The noise and signal transfer functions as well as the stability of the designed electro-mechanical ΣΔ are analyzed. Simulation results of the closed loop ΣΔ-based gyroscope measuring the signalto-noise ratio are given and compared with the corresponding electrical modulator

Topics: Electro-Mechanical ΣΔ Modulator
Year: 2013
OAI identifier: oai:CiteSeerX.psu:
Provided by: CiteSeerX
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