Thermoelastic quality-factor enhanced disk resonator gyroscope

Abstract

This paper proposes and demonstrates a novel method to greatly enhance the thermoelastic quality-factor (Q TED ) of disk resonator gyroscope (DRG) which is hanging lumped mass on the frame structure. This method could greatly reduce the resonant frequency f 0 whereas rarely affect the relaxation rate f Relax . Simulations and experiments have been implemented to verify this technique. The fabricated enhanced DRG shows a two-fold improvement in quality-factor (Q) and five-fold improvement in decay time constant (τ) compared with the conventional pure frame DRG.