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公开(公告)号：FR2788163A1
公开(公告)日：2000-07-07
申请号：FR9816659
申请日：1998-12-30
Applicant: SEXTANT AVIONIQUE
Inventor： GUILLEMIN PIERRE , GIROUD PIERRE
Abstract: The invention concerns an electromagnetic actuator designed to move an external member (2), comprising a fixed stator element (12) associated with a mobile polar element (14) capable of being made integral with the external member (2), the fixed stator element (12) and the mobile polar element (14) forming a magnetic circuit and defining between them at least two air gaps (51), a magnet (5) promoting the generation of magnetic field lines in the magnetic circuit, a coil (6) and means powering the coil to control by electromagnetic induction phenomena the displacement of the mobile adjusting polar element (15). It further comprises a polar adjusting element (15) to place the mobile polar element (14) in an adjusted position relative to that of the fixed stator element (12), by deviating the magnetic field lines. The invention is particularly applicable to accelerometers.
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公开(公告)号：NO982667D0
公开(公告)日：1998-06-10
申请号：NO982667
申请日：1998-06-10
Applicant: SEXTANT AVIONIQUE
Inventor： LEFORT OLIVIER , PEDRAZA-RAMOS SYLVIE , PRESSET RENU , GIROUD PIERRE
Abstract: PCT No. PCT/FR96/01968 Sec. 371 Date Jul. 30, 1998 Sec. 102(e) Date Jul. 30, 1998 PCT Filed Dec. 10, 1996 PCT Pub. No. WO97/22010 PCT Pub. Date Jun. 19, 1997An accelerometer based on monocrystalline silicon. A moving mass is connected to a fixed frame by suspension arms. The sensor is produced in the stack of two silicon wafers in which stop and counter-stop functions are produced so as to limit the amplitude of the movements of the moving mass.
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公开(公告)号：FR2742230B1
公开(公告)日：1998-01-09
申请号：FR9514686
申请日：1995-12-12
Applicant: SEXTANT AVIONIQUE
Inventor： LEFORT OLIVIER , PEDRAZA RAMOS SYLVIE , PRESSET RENE , GIROUD PIERRE
Abstract: PCT No. PCT/FR96/01968 Sec. 371 Date Jul. 30, 1998 Sec. 102(e) Date Jul. 30, 1998 PCT Filed Dec. 10, 1996 PCT Pub. No. WO97/22010 PCT Pub. Date Jun. 19, 1997An accelerometer based on monocrystalline silicon. A moving mass is connected to a fixed frame by suspension arms. The sensor is produced in the stack of two silicon wafers in which stop and counter-stop functions are produced so as to limit the amplitude of the movements of the moving mass.
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公开(公告)号：CA2239107A1
公开(公告)日：1997-06-19
申请号：CA2239107
申请日：1996-12-10
Applicant: SEXTANT AVIONIQUE
Inventor： GIROUD PIERRE , GUILLEMIN PIERRE , MIGEON ANDRE , PEDRAZA-RAMOS SYLVIE
Abstract: L'invention concerne un accéléromètre électromagnétique comportant une partie sensible en silicium avec une masse mobile (2) reliée à un cadre périphérique (3) via des bras de suspension (80,81). La partie sensible en silicium est solidaire d'un moteur (1) à raideur dite négative comprenant une enceinte polaire (12) fixe liée au cadre périphérique, un aimant (5), une bobine (6) et une partie polaire mobile (14) insérée dans l'enceinte (12), ladite partie polaire (14) étant solidaire de la masse mobile (2). Application: géophone.
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公开(公告)号：FR2742231A1
公开(公告)日：1997-06-13
申请号：FR9514687
申请日：1995-12-12
Applicant: SEXTANT AVIONIQUE
Inventor： GIROUD PIERRE , GUILLEMIN PIERRE , MIGEON ANDRE , PEDRAZA RAMOS SYLVIE
Abstract: An electromagnetic accelerometer comprising a sensitive silicon portion with a movable weight (2) connected to a frame (3) via a suspension arm (80, 81). The sensitive silicon portion is secured to a motor (1) having so-called negative stiffness and including a stationary pole chamber (12) connected to the frame, a magnet (5), a coil (6) and a movable pole portion (14) inserted into the chamber (12) and secured to the movable weight (2). Said accelerometer is useful in geophones.
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Patent Agency Ranking
公开(公告)号：FR2686191A1
公开(公告)日：1993-07-16
申请号：FR9302339
申请日：1993-02-23
Applicant: SEXTANT AVIONIQUE
Inventor： GIROUD PIERRE , LEFORT PIERRE-OLIVIER , PRESSET RENE
IPC: G01P15/08 , G01P15/125 , H01L21/58 , H01L23/34
Abstract: The present invention relates to a flat parallelepipedal microcomponent layout consisting of an assembly of silicon wafers (1, 2, 3) mounted on a support. A silicon plate (30) is fixed by a first small-size region (31) of its upper surface to one of the wafers of the microcomponent, and by a second small-size region (32) of its lower surface to the support (20).
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公开(公告)号：BR9612776A
公开(公告)日：2001-01-02
申请号：BR9612776
申请日：1996-12-10
Applicant: SEXTANT AVIONIQUE
Inventor： LEFORT OLIVIER , PEDRAZA-RAMOS SYLVIE , PRESSET RENE , GIROUD PIERRE
Abstract: PCT No. PCT/FR96/01968 Sec. 371 Date Jul. 30, 1998 Sec. 102(e) Date Jul. 30, 1998 PCT Filed Dec. 10, 1996 PCT Pub. No. WO97/22010 PCT Pub. Date Jun. 19, 1997An accelerometer based on monocrystalline silicon. A moving mass is connected to a fixed frame by suspension arms. The sensor is produced in the stack of two silicon wafers in which stop and counter-stop functions are produced so as to limit the amplitude of the movements of the moving mass.
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公开(公告)号：AU707264B2
公开(公告)日：1999-07-08
申请号：AU1101697
申请日：1996-12-10
Applicant: SEXTANT AVIONIQUE
Inventor： GIROUD PIERRE , GUILLEMIN PIERRE , MIGEON ANDRE , PEDRAZA-RAMOS SYLVIE
Abstract: PCT No. PCT/FR96/01969 Sec. 371 Date May 4, 1999 Sec. 102(e) Date Apr. 5, 1999 PCT Filed Dec. 10, 1996 PCT Pub. No. WO97/22011 PCT Pub. Date Jun. 19, 1997An electromagnetic accelerometer includes a peripheral frame, a mass suspended from the peripheral frame, a plurality of strain gauges configured to detect displacement of the mass, and a magnetic motor. The magnetic motor includes a first pole piece defining a chamber, a second pole piece positioned in the chamber and coupled to the mass, a permanent magnet coupled to the first pole piece, and a coil coupled to the first pole piece. The permanent magnet and the coil surround at least a portion of the second pole piece.
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公开(公告)号：FR2742231B1
公开(公告)日：1998-01-02
申请号：FR9514687
申请日：1995-12-12
Applicant: SEXTANT AVIONIQUE
Inventor： GIROUD PIERRE , GUILLEMIN PIERRE , MIGEON ANDRE , PEDRAZA RAMOS SYLVIE
Abstract: PCT No. PCT/FR96/01969 Sec. 371 Date May 4, 1999 Sec. 102(e) Date Apr. 5, 1999 PCT Filed Dec. 10, 1996 PCT Pub. No. WO97/22011 PCT Pub. Date Jun. 19, 1997An electromagnetic accelerometer includes a peripheral frame, a mass suspended from the peripheral frame, a plurality of strain gauges configured to detect displacement of the mass, and a magnetic motor. The magnetic motor includes a first pole piece defining a chamber, a second pole piece positioned in the chamber and coupled to the mass, a permanent magnet coupled to the first pole piece, and a coil coupled to the first pole piece. The permanent magnet and the coil surround at least a portion of the second pole piece.
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公开(公告)号：AU1101597A
公开(公告)日：1997-07-03
申请号：AU1101597
申请日：1996-12-10
Applicant: SEXTANT AVIONIQUE
Inventor： LEFORT OLIVIER , PEDRAZA-RAMOS SYLVIE , PRESSET RENE , GIROUD PIERRE
Abstract: PCT No. PCT/FR96/01968 Sec. 371 Date Jul. 30, 1998 Sec. 102(e) Date Jul. 30, 1998 PCT Filed Dec. 10, 1996 PCT Pub. No. WO97/22010 PCT Pub. Date Jun. 19, 1997An accelerometer based on monocrystalline silicon. A moving mass is connected to a fixed frame by suspension arms. The sensor is produced in the stack of two silicon wafers in which stop and counter-stop functions are produced so as to limit the amplitude of the movements of the moving mass.
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