Mounting structure of angular rate sensor
AssigneeDenso Corporation
InventorsShunji Mase, Mutsuhito Ogino
Life of this patent
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Abstract
An angular rate sensor includes: a substrate; a drive-purpose vibrator capable of vibrating in a first direction; and an angular velocity detection-purpose vibrator capable of vibrating in a second direction. The sensor detects an angular velocity on the basis of vibration of the angular velocity detection-purpose vibrator in the second direction caused by a Coriolis force, when the drive-purpose vibrator is vibrated in the first direction, and the angular velocity is applied to the sensor in a third direction. The angular velocity detection-purpose vibrator has a length along with the second direction and a width along with the first direction. A ratio between the width and the length is equal to or larger than 0.1.
Claims7
A mounting structure comprising:
- a sensor;
- and
- a mounting board for mounting the sensor thereon, wherein
- the sensor includes a pair of vibrators capable of vibrating in a first direction,
- each sensor detects an angular velocity on the basis of vibration of the vibrator in a second direction in a case where the vibrator is vibrated in the first direction, and where the angular velocity is applied to the sensor in a third direction so that the third direction provides a rotation axis of the angular velocity,
- the vibrators of the pair of vibrators vibrate in phases that are opposite to one another;
- the second direction is perpendicular to the first direction,
- the third direction is perpendicular to both of the first and the second directions,
- the third direction is in parallel to a horizontal plane perpendicular to a gravitational direction, and
- the first direction is in parallel to the horizontal plane.
Dependencies are inferred from the claim text.