US 12,305,985 B1
Gyroscope sensors having nodal push-pull actuation and antinodal readout
Matthew Pelliccione, Malibu, CA (US); Logan Sorenson, Malibu, CA (US); and David Chang, Malibu, CA (US)
Assigned to HRL LABORATORIES, LLC, Malibu, CA (US)
Filed by HRL Laboratories, LLC, Malibu, CA (US)
Filed on Dec. 16, 2022, as Appl. No. 18/082,587.
Int. Cl. G01C 19/56 (2012.01); G01C 19/5691 (2012.01)
CPC G01C 19/5691 (2013.01) 8 Claims
OG exemplary drawing
 
1. A Coriolis vibratory gyroscope having:
an axisymmetric resonator with at least a first and a second n=2 degenerate vibratory modes, the first and second modes having each at least two nodes and two antinodes aligned, symmetrically with respect to a center of the resonator, respectively along first and second nodal directions and first and second antinodal directions;
a plurality of electrodes arranged at a distance around a periphery of the resonator; wherein said plurality of electrodes comprise:
a first pair of drive electrodes arranged symmetrically with respect to the center of the resonator along a direction that is closer to the first nodal direction than to the first or second antinodal directions or the second nodal direction; and
at least one first pair of sense electrodes arranged symmetrically with respect to the center of the resonator along a direction that is closer to the second antinodal direction than to the first or second nodal direction or the first antinodal direction.