Engineering Commons^™

On Control System Design For The Conventional Mode Of Operation Of Vibrational Gyroscopes, Lili Dong, Qing Zheng, Zhiqiang Gao

Electrical and Computer Engineering Faculty Publications

This paper presents a novel control circuitry design for both vibrating axes (drive and sense) of vibrational gyroscopes, and a new sensing method for time-varying rotation rates. The control design is motivated to address the challenges posed by manufacturing imperfection and environment vibrations that are particularly pronounced in microelectromechanical systems (MEMS) gyroscopes. The method of choice is active disturbance rejection control that, unlike most existing control design methods, does not depend on an accurate model of the plant. The task of control design is simplified when the internal dynamics, such as mechanical cross coupling between the drive and sense axes, …