Takao Soma

Finite Element Method Simulation of Double-T Type Vibrators for Flatly Supported Piezoelectric Vibratory Gyro-Sensor.

In this study we deal with a flexural vibrating resonator for flatly supported vibratory gyro-sensors in parallel with the rotating plane. This type of gyro-sensor uses two vibration modes in only one plane of single crystal quartz, and therefore can be constructed to be very stable under operating conditions. The double-T type vibrator that has two T-type resonating arms and two resonant arms is designed for improving the quality factor Q of both driving and detecting vibration modes for this vibratory gyro-sensor. The result of finite element analysis of the double-T type vibrators shows the small influence of its vibration mode with the support at the center of gravity of the vibrator.