MEMS resonant accelerometer
First Claim
1. A micro electro mechanical system (MEMS) resonating accelerometer, comprisinga first inertial mass;
- a second inertial mass which is spaced a predetermined distance apart from the first inertial mass on a first axis;
an elastic body which is provided between the first and second inertial masses to apply elasticity; and
a tuning fork which is connected to the elastic body and measures a change of frequency according to acceleration,wherein a longitudinal direction of the tuning fork is parallel to a second axis which is perpendicular to the first axis, the elastic body has an opening portion being in a circular shape with a portion removed, and one end of the tuning fork penetrates the opening portion and is connected to an inner surface of the elastic body.
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Accused Products
Abstract
Provided is a micro electro mechanical system (MEMS) resonating accelerometer. The MEMS resonating accelerometer according to the present invention comprises: a first inertial mass; a second inertial mass which is spaced at a predetermined distance from the first inertial mass on a first axis; an elastic body which is provided between the first and second inertial masses so as to apply elasticity; and a tuning fork which is connected to the elastic body and measures the change of frequency according to acceleration, wherein the longitudinal direction of the tuning fork is parallel to a second axis which is perpendicular to the first axis, the elastic body has an opening portion being in a circular shape with a portion thereof removed, and one end of the tuning fork penetrates the opening portion and is connected to the inner surface of the elastic body.
11 Citations
6 Claims
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1. A micro electro mechanical system (MEMS) resonating accelerometer, comprising
a first inertial mass; -
a second inertial mass which is spaced a predetermined distance apart from the first inertial mass on a first axis; an elastic body which is provided between the first and second inertial masses to apply elasticity; and a tuning fork which is connected to the elastic body and measures a change of frequency according to acceleration, wherein a longitudinal direction of the tuning fork is parallel to a second axis which is perpendicular to the first axis, the elastic body has an opening portion being in a circular shape with a portion removed, and one end of the tuning fork penetrates the opening portion and is connected to an inner surface of the elastic body. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification