Open AccessEquivalent circuit of piezoelectric resonant disk gyroscope through admittance circle method
Author(s) -
Ou Bin,
Zhang Weiping,
Tang Jian,
Sun Dianjun,
Xing Yaliang,
Fang Dong,
Cui Feng
Publication year - 2016
Publication title -
micro and nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.25
H-Index - 31
ISSN - 1750-0443
DOI - 10.1049/mnl.2016.0413
Subject(s) - admittance , equivalent circuit , gyroscope , electrical impedance , resonator , piezoelectricity , dissipation , physics , control theory (sociology) , acoustics , engineering , voltage , electrical engineering , computer science , optics , quantum mechanics , control (management) , artificial intelligence
This work aimed to construct a new equivalent circuit which is useful for the further studying of the resonator in the piezoelectric gyroscope. Measurements of the actual admittance circle are used to improve the parameters of the Van Dyke's model. Meanwhile, a parallel resistance to form the new equivalent circuit through analysis is added. The relative error of phase and impedance are 0.335 and 3.68%, respectively. Different values of parallel resistances are added to verify the rationality of the circuit. Contrast to the traditional Van Dyke's model, the new equivalent circuit is more complete in explaining the energy dissipation.