Measuring and testing – Speed – velocity – or acceleration – Angular rate using gyroscopic or coriolis effect
Patent
1999-01-29
2000-12-26
Moller, Richard A.
Measuring and testing
Speed, velocity, or acceleration
Angular rate using gyroscopic or coriolis effect
G01C 1900
Patent
active
061641340
ABSTRACT:
A balanced vibratory micro-gyroscope having an electrode pattern having four inner drive electrodes and four outer sense electrodes for providing balanced push-pull control of a cloverleaf micro-gyroscope. A control circuit utilizes equal and opposite input signals to the drive electrodes and processes output signals from the sense electrodes to precisely control the drive electrodes. Capacitance is added between opposing drive and sense electrodes pattern in order to null capacitive coupling effects between adjacent drive and sense electrodes. The control circuit linearizes the force on the micro-gyroscope thereby improving performance. Advantage is taken of Coulomb's Law to eliminate an electronic multiplier in the vibration amplitude control loop. A simplified full-wave rectifier further enhances the control circuit and operation of the micro-gyroscope. A closed negative feedback loop in the control circuit provides a corrective signal to the rate driving electrodes through rate sensing signals in order to prevent unwanted harmonic movement in the micro-gyroscope.
REFERENCES:
patent: 5894090 (1999-04-01), Tang
Gudmestad Terje
Hughes Electronics Corporation
Moller Richard A.
LandOfFree
Balanced vibratory gyroscope and amplitude control for same does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Balanced vibratory gyroscope and amplitude control for same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Balanced vibratory gyroscope and amplitude control for same will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-983221