Angular velocity sensor

Details Angular velocity sensor Angular velocity sensor

1998-01-09

2000-04-11

Dougherty, Thomas M.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

G01P 1509

Patent

active

060491574

ABSTRACT:
The present invention provides an angular velocity sensor having a simplified configuration and a superior detection sensitivity by sufficiently utilizing the capability of the piezoelectric elements.
A plurality of piezoelectric elements 3, 4, and 5 are attached to a constant-elastic metal oscillator 2. One of the piezoelectric elements 3, 4, and 5 is made to function as an impedance element of the Colpitts oscillation circuit, constituting a self-oscillation type drive circuit 6. While this self-oscillation type drive circuit 6 is driven so as to oscillate the constant-elastic metal oscillator 2, the Coriolis force generated in the constant-elastic metal oscillator 2 is detected by the other piezoelectric elements 4 and 5.

REFERENCES:
patent: 4960000 (1990-10-01), Wiget
patent: 5345822 (1994-09-01), Nakamura et al.
patent: 5375336 (1994-12-01), Nakamura
patent: 5420548 (1995-05-01), Nakajima
patent: 5520050 (1996-05-01), Nakamura
patent: 5783897 (1998-07-01), Okaguchi

Affiliated with

Also associated with

Rating

Angular velocity sensor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Angular velocity sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Angular velocity sensor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1179066