GYRO QUADRATURE STABALIZATION WITH DEMODULATION PHASE ERROR NULLING

摘要

A gyroscope system may include a disc resonator gyroscope including a plurality of electrodes embedded in the disc resonator gyroscope. The electrodes may be configured for at least applying a drive voltage and a tuning voltage to the disc resonator gyroscope and for sensing operating parameters of the disc resonator gyroscope. The gyroscope system may also include a quadrature stabilization circuit configured to measure a quadrature error and generate a quadrature regulating voltage based on the quadrature error. The tuning voltage may be adjusted by the quadrature regulating voltage to cancel an effect of voltage flicker before being applied to a tuning electrode of the disc resonator gyroscope.

主权项

1. A gyroscope system, comprising:
a disc resonator gyroscope comprising a plurality of electrodes embedded in the disc resonator gyroscope, wherein the electrodes are configured for at least applying a drive voltage and a tuning voltage to the disc resonator gyroscope and for sensing operating parameters of the disc resonator gyroscope; and a quadrature stabilization circuit configured to measure a quadrature error and generate a quadrature regulating voltage based on the quadrature error, wherein the tuning voltage is adjusted by the quadrature regulating voltage to cancel an effect of voltage flicker on the tuning voltage before the tuning voltage is applied to a tuning electrode of the disc resonator gyroscope.