| 摘要 |
PURPOSE: To simplify the adjustment of resonance frequencies of the excitation vibration and detecting vibration of a vibrator. CONSTITUTION: A yaw rate sensor 10 is provided with a vibrator 12 fixed to and supported by a fixed body 14. The vibrator 12 is provided with a vibrating piece 18 positioned at the center of the vibrator 12, exciters 20 and 22 respectively stuck to both end faces of the piece 18 at both ends, and detectors 24 and 26 respectively stuck to the exciters 20 and 22. The exciters 20 and 22 set the left-side vibrating piece section 18a and right-side vibrating piece section 18b of the piece 18 to steady vibrating states in the longitudinal direction along x-axis. When a rotational angular velocity acts on the vibrator 12 around z-axis, a Coriolis force is generated along y-axis. By using the Coriolis force, therefore, the sections 18a and 18b are caused to generate slipping vibrations, namely, transversal vibrations which are different from the longitudinal vibrations along y-axis and the detectors 24 and 26 detect the shear vibrations. |
