Measuring and testing – Speed – velocity – or acceleration – Angular rate using gyroscopic or coriolis effect
Patent
1995-11-13
1997-10-14
Williams, Hezron E.
Measuring and testing
Speed, velocity, or acceleration
Angular rate using gyroscopic or coriolis effect
7350412, 7350402, G01C 1900
Patent
active
056774869
ABSTRACT:
An oscillation gyroscope 10 includes an oscillator 11 comprising an equilateral triangular prism-shaped vibrating body 12 and piezoelectric elements 14a to 14c. An oscillator circuit 26 including an inverse amplification circuit 28 and a phase circuit 30 is connected between the piezoelectric elements 14a, 14b and the piezoelectric element 14c via resistors 22 and 24. The piezoelectric elements 14a and 14b are connected to a differential amplification circuit 32 and the output signal of a addition signal computing unit 34 is added to the output signal of the differential amplification circuit 32 by an adder 33. A signal of the same phase or an inverse phase with respect to the output signal of the phase circuit 30 or an inverse amplification circuit 28 is level-adjusted and outputted from the addition signal computing unit 34. A composite signal made up of the output signal of the differential amplification circuit 32 and the output signal of the addition signal computing unit 34 is detected by a synchronous detector 36 and smoothed by a smoothing circuit 38.
REFERENCES:
patent: 4799385 (1989-01-01), Hulsing et al.
patent: 5012174 (1991-04-01), Adkins et al.
patent: 5349857 (1994-09-01), Kasanami et al.
patent: 5400269 (1995-03-01), White et al.
patent: 5412204 (1995-05-01), Nakamura
Ebara Kazuhiro
Fujimoto Katsumi
Nakamura Takeshi
Moller Richard A.
Murata Manufacturing Co. Ltd.
Williams Hezron E.
LandOfFree
Oscillation gyroscope does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Oscillation gyroscope, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oscillation gyroscope will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1556785