VERTICAL ACCELEROMETER
First Claim
1. A vertical accelerometer comprising:
- a substrate; and
a plurality of unit vertical accelerometers, each having a detection mass disposed on the substrate to be rotated by acceleration applied perpendicular to the substrate, and a detection electrode formed at the detection mass,wherein the plurality of unit vertical accelerometers are provided such that a detection electrode of an unit vertical accelerometer opposes a detection electrode of another unit vertical accelerometer to detect the acceleration through variation in capacitance due to variation in area in which the detection electrodes opposing each other overlap each other.
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Accused Products
Abstract
Provided is a vertical accelerometer for measuring acceleration applied perpendicular to a substrate to increase sensitivity thereof. The vertical accelerometer includes a substrate, and a plurality of unit vertical accelerometers, each having a detection mass disposed on the substrate to be rotated by acceleration applied perpendicular to the substrate, and a detection electrode formed at the detection mass. Here, the unit vertical accelerometers are provided to be in contact with the detection electrodes to detect the acceleration through variation in capacitance due to variation in area in which the contacted detection electrodes overlaps each other.
20 Citations
9 Claims
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1. A vertical accelerometer comprising:
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a substrate; and a plurality of unit vertical accelerometers, each having a detection mass disposed on the substrate to be rotated by acceleration applied perpendicular to the substrate, and a detection electrode formed at the detection mass, wherein the plurality of unit vertical accelerometers are provided such that a detection electrode of an unit vertical accelerometer opposes a detection electrode of another unit vertical accelerometer to detect the acceleration through variation in capacitance due to variation in area in which the detection electrodes opposing each other overlap each other. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A three-dimensional accelerometer comprising:
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a substrate; X- and Y-axis accelerometers disposed on the substrate and detecting acceleration parallel to the substrate; and a plurality of unit vertical accelerometers, each having a detection mass disposed on the substrate to be rotated by acceleration applied perpendicular to the substrate, and a detection electrode formed at the detection mass, wherein the X- and Y-axis accelerometers are disposed at a center of the substrate, and the unit vertical accelerometers are disposed at a periphery of the substrate to detect three-dimensional acceleration.
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Specification