Patent ID: 8933759
Filing Date: 2015-01-13
Classification: H03B,H03H

Abstract:
1. In combination, a shear-mode quartz resonator designed to mechanically oscillate at a predetermined frequency and electronic circuits for inhibiting oscillation of the shear-mode quartz resonator in response to externally applied mechanical forces, the mechanical forces otherwise inducing mechanical vibration of the shear-mode quartz resonator at frequencies significantly less than said predetermined frequency, the shear-mode quartz resonator comprising: a. a quartz beam which is attached to a substrate layer at or near one end of said quartz beam; b. said quartz beam having relatively large metallic electrodes attached on opposite sides thereof, the relatively large metallic electrodes, in use, being coupled to an external oscillator circuit; c. said quartz beam having relatively smaller sense and rebalance electrodes attached on the same opposite sides of said quartz beam as said relatively large metallic electrodes; d. the relatively smaller sense and rebalance electrodes being coupled, in use, with said electronic circuits for inhibiting oscillation of the shear-mode quartz resonator in response to externally applied mechanical forces, the mechanical forces otherwise inducing mechanical vibration of the shear-mode quartz resonator at frequencies significantly less than said predetermined frequency.