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Automated frequency and quality‐factor matching method for frequency modulated / rate integrating gyroscope
Author(s) -
Tsukamoto Takashiro,
Tanaka Shuji
Publication year - 2019
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.23248
Subject(s) - gyroscope , quality (philosophy) , vibrating structure gyroscope , coupling (piping) , amplitude , compensation (psychology) , mode (computer interface) , resonator , q factor , control theory (sociology) , electronic engineering , acoustics , physics , engineering , computer science , optics , artificial intelligence , mechanical engineering , psychology , control (management) , quantum mechanics , psychoanalysis , operating system
This paper reports an automated tuning method for a frequency modulated / rate integrating gyroscope (FM/RIG). The frequency and quality factor mismatches in a MEMS resonator cause the mode‐coupling, thus degrade the accuracy of the gyroscope. The X‐Y phase difference and amplitude ratio of driving signals are used as the tuning parameters for the mismatch compensation. An automated tuning method based on the relationship between those tuning parameters and mode‐coupling terms were developed. Using the proposed method, the mode‐coupling effect, which comes from the frequency and quality factor mismatch, could be 3 orders of magnitude smaller than the noncompensated one.