[특허]Electrostatic accelerometer

[미국특허] Electrostatic accelerometer 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01P-015/125 G01P-003/44
출원번호	US-0584405 (1984-02-28)
우선권정보	FR-0003257 (1983-02-28)
발명자 / 주소	Bernard Alain M. (Fresnes FRX) Sacleux Bernard (Plessis Robinson FRX)
출원인 / 주소	Office National d\Etudes et de Recherches Aerospatiales (O.N.E.R.A.) (FRX 07)
인용정보	피인용 횟수 : 56 인용 특허 : 1

초록 ▼

A tridimensional electrostatic accelerometer comprises a cube-shaped test weight. On each of the six faces of the cube is a pair of conducting electrodes. A hollow cage accommodates the test weight and twelve electrodes on the cage to form, with the test weight electrodes, three sets of four capacitors Cij, where i varies from 1 to 4 and j is x, y and z respectively. Measurements are made for each value of j of the sums and differences of the capacities (C1-C2)j (C3-C4)j (C1+C2)j (C3+C4)j From these quantities voltages are derived for positioning the test weight. The voltages are applied selectively to the electrodes of the set of capacitors Cij.

대표청구항 ▼

A tridimensional electrostatic accelerometer comprising: a cube-shaped test weight having six faces; a pair of conducting electrodes on each of the six faces of said cube-shaped test weight, two of said electrodes being adjacent on each face and the electrodes on two parallel faces of the cube being opposite two by two, whereby each first electrode on a face has an adjacent second electrode on the same face, an opposite third electrode on the parallel face and a diagonally opposite fourth electrode on said parallel face, the electrodes thereby forming three sets of four electrodes, each set comprising one of said first electrodes, one of said adjacent second electrodes, one of said opposite third electrodes and one of said diagonally opposite fourth electrodes, each of said sets being respectively associated with a given one among three orthogonal coordinate axes; a hollow cage accomodating said test weight; twelve electrodes on said cage, forming with the test weight electrodes three sets of four capacitors Cij, where i varies from 1 to 4 and j is selectively each x, y and z, respectively associated with said orthogonal coordinate axes; means for measuring for each value of j the quantities (C1-C2)j(C3-C4)j (C1+C2)j(C3+C4)j; means for forming with said above quantities signals indicative of: Vtr,j=(C1+C3)j-(C2+C4)j Vrot,j=(C3-C4)j-(C1-C2)j; means responsive to the signals representing Vtr,j and Vrot,j for: applying a voltage proportional to -Vtr,j+Vrot,j across the capacitor including said first electrode of an electrode set, and applying a voltage proportional to Vtr,j-Vrot,j across the capacitor including said third opposite electrode of said set, and applying a voltage proportional to Vtr,j+Vrot,j across the capacitor including said second adjacent opposite electrode of said set, and applying a voltage proportional to -(Vtrj,+Vrot,j) across the capacitor including said fourth diagonally opposite electrode of said set.

이 특허에 인용된 특허 (1)

Bernard Alain M. (Fresnes FRX), Electrostatic accelerometer.
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[미국특허] Electrostatic accelerometer 원문보기