Adaptive Fuzzy Modal Matching of Capacitive Micromachined Gyro Electrostatic Controlling

A fuzzy PI controller was utilized to realize the modal matching between a driving and detecting model. A simulation model was built to study electrostatic decoupling controlling technology. The simulation results show that the modal matching can be gained by the fuzzy PI controller. The frequency d...

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Bibliographic Details
Published inSensors (Basel, Switzerland) Vol. 23; no. 17; p. 7422
Main Authors Cheng, Li, Liu, Ruimin, Guo, Shumin, Zheng, Gaofeng, Liu, Yifang
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 25.08.2023
MDPI
Subjects
capacitive micro-machined gyro
Controllers
Electric fields
electrostatic control
feedback control
Manufacturing
Methods
modal matching
numerical simulation
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Summary:A fuzzy PI controller was utilized to realize the modal matching between a driving and detecting model. A simulation model was built to study electrostatic decoupling controlling technology. The simulation results show that the modal matching can be gained by the fuzzy PI controller. The frequency difference between the driving mode and the detection mode is less than 1 Hz, and the offset of the input DC is smaller than 0.6 V. The optimal proportionality factor and integral coefficient are 1.5 and 20, respectively. The fuzzy PI controlling technology provides a good way for the parameter optimization to gain modal matching of micro gyro, via which the detecting accuracy and stability can be improved greatly.
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ISSN:1424-8220
1424-8220
DOI:10.3390/s23177422