G - Physics – 01 – C
Patent
G - Physics
01
C
G01C 19/56 (2006.01) B81C 99/00 (2010.01) B23K 26/36 (2006.01) B81B 7/02 (2006.01) H03H 9/02 (2006.01)
Patent
CA 2668637
Techniques for reducing the frequency split between the Coriolis-coupled modes in disc resonator gyroscopes (DRGs) by perturbing the mass distribution on the disc resonator based on an identified model are disclosed. A model-identification method of tuning a resonator comprises perturbing the mass and measuring a frequency response matrix of the resonator. The frequency response matrix includes a plurality of inputs and a plurality of outputs and the resonator has a plurality of coupled resonance modes. A reduced structural mechanics matrix model of the resonator in sensor and actuator coordinates is identified from the measured frequency response matrix and analyzed to determine generalized eigenvectors of the structural mechanics model and their variations due to selected mass perturbations which is then estimated to improve degeneracy of the plurality of coupled resonance modes based on the generalized eigenvectors of the mass and the stiffness.
Challoner A. Dorian
Kim Dong-Joon
M'closkey Robert T.
Schwartz David M.
Sim & Mcburney
The Boeing Company
The Regents Of The University Of California
LandOfFree
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