VIBRATING-MASS GYROSCOPE SYSTEMS AND METHOD
First Claim
1. A vibrating-mass gyroscope system comprising:
- a sensor system comprising a vibrating-mass and a plurality of electrodes coupled to the vibrating-mass that are configured to facilitate in-plane motion of the vibrating-mass; and
a gyroscope controller configured to generate a drive signal that is provided to a first set of the plurality of electrodes to provide an in-plane periodic oscillatory motion of the vibrating-mass along a drive axis, to generate a force-rebalance signal that is provided to a second set of the plurality of electrodes to calculate a rotation of the vibrating-mass gyroscope system about an input axis, and to generate a quadrature signal that is provided to a third set of the plurality of electrodes to substantially mitigate quadrature effects associated with the vibrating-mass.
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Accused Products
Abstract
One embodiment of the invention includes a vibrating-mass gyroscope system. The system includes a sensor system comprising a vibrating-mass and a plurality of electrodes coupled to the vibrating-mass that are configured to facilitate in-plane motion of the vibrating-mass. The system also includes a gyroscope controller configured to generate a drive signal that is provided to a first set of the plurality of electrodes to provide an in-plane periodic oscillatory motion of the vibrating-mass along a drive axis, to generate a force-rebalance signal that is provided to a second set of the plurality of electrodes to calculate a rotation of the vibrating-mass gyroscope system about an input axis, and to generate a quadrature signal that is provided to a third set of the plurality of electrodes to substantially mitigate quadrature effects associated with the vibrating-mass.
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Citations
20 Claims
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1. A vibrating-mass gyroscope system comprising:
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a sensor system comprising a vibrating-mass and a plurality of electrodes coupled to the vibrating-mass that are configured to facilitate in-plane motion of the vibrating-mass; and a gyroscope controller configured to generate a drive signal that is provided to a first set of the plurality of electrodes to provide an in-plane periodic oscillatory motion of the vibrating-mass along a drive axis, to generate a force-rebalance signal that is provided to a second set of the plurality of electrodes to calculate a rotation of the vibrating-mass gyroscope system about an input axis, and to generate a quadrature signal that is provided to a third set of the plurality of electrodes to substantially mitigate quadrature effects associated with the vibrating-mass. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for calculating rotation about an input axis in a vibrating-mass gyroscope system, the method comprising:
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monitoring a drive pickoff signal associated with a set of drive electrode shuttles that is coupled to a vibrating-mass; providing a drive signal to the set of drive electrode shuttles to provide an in-plane periodic oscillatory motion of the vibrating-mass; monitoring a force-rebalance pickoff signal associated with a set of sense electrode shuttles that is coupled to the vibrating-mass; providing a force-rebalance signal to the set of sense electrode shuttles based on the force-rebalance pickoff signal to calculate a rotation of the vibrating-mass gyroscope system about the input axis; and providing a quadrature signal to a set of quadrature electrode shuttles that is coupled to the vibrating-mass to substantially mitigate quadrature effects. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A vibrating-mass gyroscope system comprising:
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a sensor system comprising a plurality of vibrating-masses and a respective plurality of sets of electrodes respectively coupled to each of the plurality of vibrating-masses, each of the plurality of sets of substantially planar vibrating masses being configured to facilitate in-plane motion of a respective one of the plurality of vibrating-masses; and a gyroscope controller configured to generate drive signals that are provided to drive electrodes of each of the plurality of sets of electrodes to provide an in-plane periodic oscillatory motion of the respective plurality of vibrating-masses along a drive axis, to generate a force-rebalance signals that are provided to sense electrodes of each of the plurality of sets of electrodes to calculate a rotation of the vibrating-mass gyroscope system about an input axis, and to generate quadrature signals that are provided to quadrature electrodes of each of the plurality of sets of electrodes to substantially mitigate quadrature effects associated with the respective plurality of vibrating-masses. - View Dependent Claims (18, 19, 20)
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Specification