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CAPACITIVE PICK-OFF AND ELECTROSTATIC REBALANCE ACCELEROMETER HAVING EQUALIZED GAS DAMPING
CAPACITIVE PICK-OFF AND ELECTROSTATIC REBALANCE ACCELEROMETER HAVING EQUALIZED GAS DAMPING
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机译:具有均衡气体阻尼的电容式取力器和静电平衡仪
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摘要
A Micro Electro-Mechanical System (MEMS) acceleration sensing device, formed of a an elongated sensing element of substantially uniform thickness suspended for motion relative to a rotational axis offset between first and second ends thereof such that a first portion of the sensing element between the rotational axis and the first end is longer than a shorter second portion between the rotational axis and the second end; a stationary silicon substrate spaced away from the sensing element; a capacitor formed by a surface of the substrate and each of the first and second portions of the sensing element; and a valley formed in the substrate surface opposite from the first longer portion of the sensing element and spaced away from the rotational axis a distance substantially the same as the distance between the rotational axis and the second end of the sensing element.
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