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Piezoelectric-Ceramic Cylinder Type Vibratory Gyroscope

Published online by Cambridge University Press:  16 February 2011

T. Yoshida
T. Yoshida*
Affiliation:
Product Development Laboratory, Tokin Corporation. 6-7-1 Koriyama Taihaku Sendai Miyagi 982, Japan
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Abstract

A new equivalent circuit for the vibratory gyroscope and an analyzing and controlling method for the vibration mode axis of the vibrator have been studied. The vibrator of this gyroscope consists of a piezoelectric-ceramic cylinder. On its outer cylindrical surface, interdigital electrodes are formed. And these electrodes are used for poling, AC excitation as well as detection. In order to prevent some deviation of the performance of the gyroscope due to the adhesion process, these electrodes are directly printed on the cylinder surface.

By changing the electrodes pattern and making a groove on the surface of the vibrator, the vibration mode axis can be easily controlled. Optimum design suited for demanded specifications can then be obtained.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 360 , 1994 , 65
Copyright
Copyright © Materials Research Society 1995

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References

[1]Gates, W.D.: Electronics 10 (1968) p. 130Google Scholar
[2]Nakamura, T., Okano, K., Kasanami, T.: No 150 Committee of Japan Society for the Promotion of Science, Jan. (1989) p. 731 [in Japanese]Google Scholar
[3]Oyama, S., Shimizu, H., I.E.I.C.E Japan US87-30(1987) p.19 [in Japanese]Google Scholar
[4]Abe, H., Yoshida, T., Tsuruga, K.: J.J.A.P. Vo131 (1992) p.3061Google Scholar