Dual axial gyroscope with piezoelectric ceramics

Details Dual axial gyroscope with piezoelectric ceramics Dual axial gyroscope with piezoelectric ceramics

1998-04-27

2000-04-04

Kwok, Helen C.

Measuring and testing

Speed, velocity, or acceleration

Angular rate using gyroscopic or coriolis effect

7350402, 7351434, 310316, 310321, G01P 904, H01L 4108

Patent

active

060447060

ABSTRACT:
A piezoelectric device is used in an dual axial gyroscope system and includes a piezoelectric exciter for generating a linear velocity on a first axis; a first piezoelectric detector element, placed on a surface of the piezoelectric exciter in a direction orthogonal to the first axis, for detecting a first Coriolis force provided in a direction orthogonal to the first detector; and as second piezoelectric detector element, placed on the surface of the piezoelectric exciter in a direction orthogonal to the first axis and the first detector, for detecting a second Coriolis force provided in a direction orthogonal to the second detector element.

REFERENCES:
patent: 3842681 (1974-10-01), Mumme
patent: 5001940 (1991-03-01), Ogawa
patent: 5045745 (1991-09-01), Umemoto et al.
patent: 5635639 (1997-06-01), Grieff et al.
patent: 5635787 (1997-06-01), Mori et al.
patent: 5675083 (1997-10-01), Nakamura
patent: 5847487 (1998-12-01), Maeno
Ryoo et al., "Design and Fabrication of a Dual Axial Gyroscope with Piezoelectric Ceramics", Feb. 20, 1998.

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