Phase and Vibration Analysis for a CMOS-MEMS Gyroscope

Huikai Xie*, Gary K. Fedder, Zhiyu Pan, Wilhelm Frey

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Phase is an important issue in a vibratory-rate gyroscope for Coriolis signal demodulation and off-axis motion compensation. This paper uses a simplified three-dimensional comb model to analyze the motion coupling and the phase relation between the Coriolis signal and coupled signals for a lateral-axis CMOS-MEMS gyroscope. It is found that the off-axis motion is highly nonlinear and dominates the coupled motions in the comb-drive actuation. The phase relation was verified experimentally.

Original languageEnglish
Pages (from-to)319-324
Number of pages6
JournalInternational Journal of Nonlinear Sciences and Numerical Simulation
Volume3
Issue number3-4
DOIs
Publication statusPublished - 2002
Externally publishedYes

Keywords

  • CMOS-MEMS
  • Gyroscope
  • Motion coupling
  • Phase
  • Quadrature

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