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- W2119177560 abstract "To improve the sensitivity and stability of the piezoelectric gyroscope, the null signal suppression of leakage coupling between driving and detecting modes is the most important subject. A new H-type LiTaO/sub 3/ (LT) piezoelectric gyroscope for suppression of its inner leakage coupling consists of the driving fork, the detecting fork and the long rectangular median coupler. The new arrangement of the electrodes on arms can vibrate only the driving fork in the f/sub e/ mode but can detect the f/sub e/ mode in detecting fork due to the high electromechanical coupling coefficient of LT crystal. The resonance frequencies of the f/sub x/ and f/sub e/ modes are 14.9 kHz and 15.3 kHz. The Q values of the f/sub x/ and f/sub e/ modes are 20,000 and 6,000, respectively. The null signals due to the electrostatic leakage, the electromechanical leakage and the mechanical leakage, were suppressed totally less than -90 dB. This value is -40 dB compared with the conventional fork type. In spite of the nf=400 Hz, the sensitivity went up to O.11 mV/(/sec) driven 1 V/sub rms/ at 14.9 kHz." @default.
- W2119177560 created "2016-06-24" @default.
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- W2119177560 date "2002-11-23" @default.
- W2119177560 modified "2023-09-22" @default.
- W2119177560 title "The null signal suppression of new type LiTaO/sub 3/ piezoelectric gyroscope" @default.
- W2119177560 cites W1639621251 @default.
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- W2119177560 doi "https://doi.org/10.1109/ultsym.1997.663148" @default.
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