GUAN Ran, ZHANG Wei-ping, XU Zhong-xing, et al. Fabrication and analysis of piezoelectric disk micro gyroscope based on thickness-shear vibration[J]. 2013, 32(9): 115-117+121.
GUAN Ran, ZHANG Wei-ping, XU Zhong-xing, et al. Fabrication and analysis of piezoelectric disk micro gyroscope based on thickness-shear vibration[J]. 2013, 32(9): 115-117+121. DOI: 10.13873/j.1000-97872013.09.020.
Because difficulties of piezoelectric transducer fabricating on the sidewall of the disk resonator
the piezoelectric disk gyroscopes based on in-plane vibration modes can hardly be fabricated with MEMS technology.To achieve miniaturization of piezoelectric disc gyroscope
a novel piezoelectric disk micro gyroscope with piezoelectric vibration body and based on thickness-shear vibration mode is designed and fabricated.The thickness-shear vibration modes make it easy to fabricate the sensor with MEMS technology by fabricating metal electrodes on the top and bottom surface of the piezoelectric wafer.The fabricated gyroscope is found to have good symmetry by impendence analysis.Based on finite element analysis on quality factor obtained by impendence analysis
the simulation results show that the gyroscope can achieve characteristics such as high sensitivity
low nonlinearity
large range and low angular rate coupling error.
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references
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