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EP0230198A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Triaxial electrostatic accelerometer with dual electrical connection to its test weight

Assignee: Office National d'Études et de Recherches Aérospatiales
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Filing: 1986-12-31
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Granted: —
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Expires: 2006-12-31
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Abstract

Abstract Accelerometer comprising a test weight movable in relation to the frame thereof, consisting of three pairs of electrically conducting parallel faces (1 - 6), the faces of each pair being orthogonal to the faces of the two other pairs and electrodes connected to the frame and forming capacitors with the faces of the test weight. The six faces form two sets of three faces (1 - 3) and (4 - 6) and the faces of a set form a first conductor insulated from the faces of the second set which form a second conductor. Position sensing voltages are applied to first and second conductors through very flexible leads (7 and 8). Position control voltages derived from said position sensing voltages are applied to said electrodes.

Inventors

  • 👤 Alain Bernard
  • 👤 Pierre Touboul

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-04 15:40
CPC Classifications
G; G01; G01P; G01P15/00; G01P15/18; G01P15/02; G01P15/08; G01P15/13; G01P15/131; G01P2015/0805; G01P2015/0822; G01P2015/0825; G01P2015/0828

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 210 words
1 - Triaxial electrostatic accelerometer comprising : - a test weight movable in relation to the accelerometer frame, having six electrically conducting plane faces arranged in pairs of two parallel faces, the faces of each pair being orthogonal to those of the other two pairs ; - six electrodes connected to said frame, respectively associated with said faces and forming therewith capacitors; - means for sensing two position parameters of the test weight through two sensing voltages ; - means for deriving two position control voltages from said two position sensing voltages, and characterized in that : - the six faces of the test weight are grouped into two sets of three faces with each set located in opposite trisectors of the test weight structure, the three faces of one set forming a first conductor electrically insulated from the second conductor formed by the three faces of the other set and that the accelerometer further comprises : - two very flexible leads connected by one end to said first and second conductor, the sensing voltages being respectively applied to said leads ; - means for applying said two position control voltages to two electrodes respectively associated with a face of the first conductor and a face of the second conductor.
Claim 2
Dependent Claim 210 words
1 - Triaxial electrostatic accelerometer comprising : - a test weight movable in relation to the accelerometer frame, having six electrically conducting plane faces arranged in pairs of two parallel faces, the faces of each pair being orthogonal to those of the other two pairs ; - six electrodes connected to said frame, respectively associated with said faces and forming therewith capacitors; - means for sensing two position parameters of the test weight through two sensing voltages ; - means for deriving two position control voltages from said two position sensing voltages, and characterized in that : - the six faces of the test weight are grouped into two sets of three faces with each set located in opposite trisectors of the test weight structure, the three faces of one set forming a first conductor electrically insulated from the second conductor formed by the three faces of the other set and that the accelerometer further comprises : - two very flexible leads connected by one end to said first and second conductor, the sensing voltages being respectively applied to said leads ; - means for applying said two position control voltages to two electrodes respectively associated with a face of the first conductor and a face of the second conductor.
Claim 3
Dependent Claim 53 words
2 - Accelerometer according to claim 1 characterized in that the two position parameters are a translation of the test weight along an axis and a rotation around said axis, the two position sensing voltages are sinewaves in phase opposition and the two position control voltages are one and the same D.C. voltage.

References Cited (Backward Citations)

FR2511509B1 Cited
EP0118359A1 Cited
EP0127500A1 Cited

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