Vibration gyroscope and method for adjusting vibration-gyroscope

Details Vibration gyroscope and method for adjusting vibration-gyroscope Vibration gyroscope and method for adjusting vibration-gyroscope

1996-11-21

1999-07-13

Williams, Hezron

Measuring and testing

Speed, velocity, or acceleration

Angular rate using gyroscopic or coriolis effect

7350402, G01C 1900

Patent

active

059229543

ABSTRACT:
A vibration gyroscope includes a vibrator. The vibrator has a vibration member formed in a regular triangular prism shape. On side faces of the vibration member, three piezoelectric elements are formed, respectively. Two of the piezoelectric elements are connected to the input terminal of an oscillation circuit through resistors which serve as the loads of the two piezoelectric elements, respectively. The output terminal of the oscillation circuit is connected to the other piezoelectric element. The former piezoelectric elements are also connected to the non-inverting input terminal and the inverting input terminal of a differential amplifier circuit, respectively. By changing the impedances of the resistors, the characteristics of the vibration gyroscope is adjusted.

REFERENCES:
patent: 4694696 (1987-09-01), Hojo et al.
patent: 5220833 (1993-06-01), Nakamura
patent: 5254898 (1993-10-01), Terajima
patent: 5460043 (1995-10-01), Terajima

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