Parallel plate type oscillatory gyroscope

Details Parallel plate type oscillatory gyroscope Parallel plate type oscillatory gyroscope

1999-05-25

2000-10-31

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

73505, 31031601, 310329, H01L 4108

Patent

active

061407399

ABSTRACT:
An oscillatory gyroscope having an improved detecting sensitivity. The oscillatory gyroscope includes an elastic metal body in the form of a rectangular column having first to fourth surfaces. The elastic metal body includes a distal portion having a distal through hole extending from the second surface to the fourth surface and a proximal portion having a second through hole extending from the first surface to the third surface. Two first ferroelectric substance films are provided on the first and third surfaces in the distal portion. Two second ferroelectric substance films are provided over the second and fourth surfaces in the proximal portion. First and second electrodes are provided on each of the first ferroelectric substance films, and third and fourth electrodes are provided on the respective second ferroelectric substance films. Voltages of reverse polarities are applied to the first and second electrodes. The positions of the first and second electrodes on the first surface are reversed with respect to those of the third surface.

REFERENCES:
patent: 2271200 (1942-01-01), Mason
patent: 3531742 (1970-09-01), Saito et al.
patent: 5049776 (1991-09-01), Ogawa
patent: 5166571 (1992-11-01), Konno et al.
patent: 5912524 (1999-06-01), Ohnishi et al.

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