Vibrator and vibratory gyroscope using the same

Details Vibrator and vibratory gyroscope using the same Vibrator and vibratory gyroscope using the same

1994-06-22

1996-04-09

Williams, Hezron E.

Measuring and testing

Speed, velocity, or acceleration

Angular rate using gyroscopic or coriolis effect

310316, G01P 904

Patent

active

055050859

ABSTRACT:
The vibrator includes, for example, a triangular prism shaped vibrating body. On each of three side faces of the vibrating body, piezoelectric elements are formed respectively. The vibrating body makes bending vibration by giving a driving signal to one or two piezoelectric elements. The vibrator is used in a vibratory gyroscope. In this case, for example, one piezoelectric element is used for vibrating the vibrator. When a rotating force is applied to the vibratory gyroscope, a Coriolis force is exerted to produce output voltages on the remaining two piezoelectric elements corresponding to the rotational angular velocity.

REFERENCES:
patent: 3520195 (1970-07-01), Tehon
patent: 4409836 (1983-10-01), Comroe et al.
patent: 4836023 (1989-06-01), Oikawa
patent: 5111083 (1992-05-01), Nakamura
patent: 5117148 (1992-05-01), Nakamura et al.
patent: 5220833 (1993-06-01), Nakamura
patent: 5349856 (1994-09-01), Nakamura
patent: 5349857 (1994-09-01), Kasanami et al.

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