Piezoelectric vibration gyro-sensor

Details Piezoelectric vibration gyro-sensor Piezoelectric vibration gyro-sensor

2006-05-30

2006-05-30

Dougherty, Thomas M. (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S31300R, C310S319000, C310S366000

Reexamination Certificate

active

07053534

ABSTRACT:
The present invention provides a piezoelectric vibration gyro-sensor utilizing Coriolis force that includes a tuning fork type vibrator in which two rectangular-columnar arms and a base to support the lower end of the arms are integrated; drive electrodes formed on two rectangular-columnar arms; and IDT electrodes of a surface acoustic wave element formed on two arms. Two pairs of the drive electrodes are provided on each rectangular-columnar arm, in which each of the pairs of drive electrodes face each other, and each pair of the drive electrodes are arranged in parallel on the rectangular-columnar arm at a given distance. The IDT electrodes of the surface acoustic wave element are provided between the drive electrodes at the lower end of the rectangular-columnar arms.

REFERENCES:
patent: 5942839 (1999-08-01), Ohnishi et al.
patent: 6288474 (2001-09-01), Ono et al.
patent: 6490925 (2002-12-01), Inoue et al.
patent: 2389316 (2002-03-01), None
patent: 9-126783 (1997-05-01), None
patent: 11-37761 (1999-02-01), None
Patent Abstracts of Japan for JP 11-037761 published on Feb. 12, 1999.

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