MEMS sensor
First Claim
1. A MEMS sensor with movable and fixed components for measuring linear acceleration, said sensor comprising:
- at least two mutually independent differential sensor elements disposed inside a common frame structure, the frame structure providing walls for hermetic sealing of the MEMS sensor, wherein the at least two mutually independent differential sensor elements are pairwise configured to perform double differential detection of the linear acceleration; and
a common anchoring area to which rotor masses and stator structures of the pairwise configured differential sensor elements are anchored, the common anchoring area being located at the centroid of the pairwise configured differential sensor elements.
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Accused Products
Abstract
The present invention relates to A MEMS sensor with movable and fixed components for measuring linear acceleration. The MEMS sensor includes at least two mutually independent differential sensor elements disposed inside a common frame structure providing walls for hermetic sealing of the MEMS sensor. The mutually independent differential sensor elements are pairwise configured to perform double differential detection of linear acceleration. The MEMS sensor includes a common anchoring area to which the at least two differential sensor elements are anchored. The common anchoring area is located at the centroid of the pairwise configured differential sensor elements. A self-test capability of the MEMS sensor is also provided.
11 Citations
18 Claims
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1. A MEMS sensor with movable and fixed components for measuring linear acceleration, said sensor comprising:
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at least two mutually independent differential sensor elements disposed inside a common frame structure, the frame structure providing walls for hermetic sealing of the MEMS sensor, wherein the at least two mutually independent differential sensor elements are pairwise configured to perform double differential detection of the linear acceleration; and a common anchoring area to which rotor masses and stator structures of the pairwise configured differential sensor elements are anchored, the common anchoring area being located at the centroid of the pairwise configured differential sensor elements. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification