Vibratory gyroscope

Details Vibratory gyroscope Vibratory gyroscope

1992-08-04

1994-09-27

Woodiel, Donald

Measuring and testing

Speed, velocity, or acceleration

Angular rate using gyroscopic or coriolis effect

73504, G01P 904

Patent

active

053498569

ABSTRACT:
A vibratory gyroscope comprises, for example, a regular triangular columnar vibrating body, and on two side faces of the vibrating body, two driving and detecting piezoelectric elements are formed. To the piezoelectric elements, an output terminal of an oscillation circuit is connected. Further, the piezoelectric elements are connected respectively to two input terminals of a differential amplifier as a detection circuit which detects outputs thereof. An output terminal of the differential amplifier is connected to one input terminal of a differential amplifying circuit as a composite circuit through a synchronized detection circuit, a smoothing circuit and so on. Furthermore, the output terminal of the differential amplifier is connected to the other input terminal of the composite circuit through an integration circuit, an amplifying circuit and so on.

REFERENCES:
patent: 5272922 (1993-12-01), Watson
patent: 5287033 (1994-02-01), Morton
patent: 5293779 (1994-03-01), Nakamura et al.
Nakamura, "Vibration Gyroscope Employs Piezoelectric Vibrator", JEE Journal, pp. 99-104, Sep. 1990.

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