US 9,810,535 B2
Vibrating-mass gyroscope systems and method
Alexander Trusov, Studio City, CA (US); and David M. Rozelle, Woodland Hills, CA (US)
Assigned to Northrop Grumman Systems Corporation, Falls Church, VA (US)
Filed by Alexander Trusov, Studio City, CA (US); and David M. Rozelle, Woodland Hills, CA (US)
Filed on Feb. 10, 2015, as Appl. No. 14/618,747.
Prior Publication US 2016/0231118 A1, Aug. 11, 2016
Int. Cl. G01C 19/5726 (2012.01); G01C 25/00 (2006.01); G01C 19/574 (2012.01); G01C 19/5755 (2012.01)
CPC G01C 19/5726 (2013.01) [G01C 19/574 (2013.01); G01C 19/5755 (2013.01); G01C 25/00 (2013.01); G01C 25/005 (2013.01)] 12 Claims
OG exemplary drawing
 
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 in response to a drive axis force along the drive axis generated in response to the drive signal,
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, the force-rebalance signal being configured to generate a force-rebalance force along a second axis that is orthogonal to the drive axis, and
a quadrature signal that is provided to a third set of the plurality of electrodes to generate a quadrature force along a third axis that is arranged at approximately 45° relative to the drive axis and the second axis to substantially mitigate quadrature effects associated with the vibrating-mass.