To provide a tuning fork type piezo-electric oscillating gyroscope superior in mass production suppressing deterioration of performance of an SN ratio accompanying miniaturization by facilitating support and mounting of a piezo-electric osillator.
The tuning fork type piezo-electric oscillating gyroscope composes an electrode by only one side of the piezo-electric oscillator by setting a polling axis of a crystal in an in-face direction of the tuning fork type piezo-electric oscillator and making piezo-electric lateral effect due to an electric field of a width direction of the piezo-electric oscillator larger. Furthermore, a balancing tuning fork type piezo-electric oscillator stabilizing an out-of-face oscillating mode through a base frame 1 integrated in an opposite direction to the tuning fork type piezo-electric oscillator and width wide parts 200 and 201 lowering a resonant frequency of the piezo-electric oscillator are formed on the edges of arms 2 and 3.
| JP2009162654 | ELECTRONIC COMPONENT DEVICE |
| JPH03172712 | ANGULAR VELOCITY SENSOR DRIVING DETECTOR |
SHUDA KOICHI
OSHIMA AKIKO
MIZUNO TAKESHI
| JP2004301552A | 2004-10-28 | |||
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| JP2002022445A | 2002-01-23 | |||
| JPH11344342A | 1999-12-14 |