Vibratory gyroscope
AssigneeMurata Manufacturing Co., Ltd.
InventorsTohru Kasanami, Takeshi Nakamura, Keiichi Okano, Yoshiko Morishita
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Abstract
The vibrator includes, for example, a triangular prism shaped vibrating body. On each of three side faces of the vibrating body, piezoelectric elements are formed respectively. The vibrating body makes bending vibration by giving a driving signal to one or two piezoelectric elements. The vibrator is used in a vibratory gyroscope. In this case, for example, one piezoelectric element is used for vibrating the vibrator. When a rotating force is applied to the vibratory gyroscope, a Coriolis force is exerted to produce output voltages on the remaining two piezoelectric elements corresponding to the rotational angular velocity.
Claims18
A vibratory gyroscope comprising:
- a rod-like vibratable body;
- a driving means for vibrating said vibratable body in a direction perpendicular to an axis of said vibratable body;
- and
- two piezoelectric means formed a) on two side faces of said vibratable body which are in a non-parallel relationship with each other and b) on both sides of a plane including said axis and a vibrating direction of said vibratable body driven by said driving means,
- wherein said two piezoelectric means are used for detecting a rotational angular velocity applied to said vibratable body.
Dependencies are inferred from the claim text.