Design and Performance Test of Digital Rebalance Loop for MEMS Gyroscope


Article Preview

In this paper, a digital rebalance loop for MEMS gyroscope is designed and its performance test is performed. First, the system model of MEMS gyroscope is established by dynamic analysis. Then, the digital rebalance loop is designed using modern control technique. The performance of the digital rebalance loop is compared with that of conventional PID rebalance loop. Through frequency response analysis using MATLAB and experiments using a real MEMS gyroscope and digital controller, which is realized using digital signal processor (DSP), it is confirmed that the controller improves the performance of the gyroscope.



Key Engineering Materials (Volumes 326-328)

Edited by:

Soon-Bok Lee and Yun-Jae Kim




B. S. Chang et al., "Design and Performance Test of Digital Rebalance Loop for MEMS Gyroscope", Key Engineering Materials, Vols. 326-328, pp. 249-252, 2006

Online since:

December 2006




[1] W.T. Sung, J.G. Lee, J.W. Song and T. Kang: H∞ Controller design of MEMS gyroscope and its performance test, Proc. IEEE PLANS 2004 (2004), pp.63-69.

[2] K. Zhou, J. C. Doyle, and K. Glover: Robust and Optimal Control, Prentice Hall, New Jersey (1996).

[3] J. W. Song: State Weighted Model Reduction Based on Frequency Weighted Gramians and Its Application to Micro Inertial Sensors, PH. D. Thesis, Seoul National University (2002).

[4] B. S. Chang, J. G. Lee and C. G. Park: Digital Rebalance Loop Design for Dynamically Tuned Gyroscope Using Digital Signal Processor, KSAS-JSASS Joint Symposium on Aerospace Engineering (2004), pp.341-344.