Invention Grant
- Patent Title: Position sensor which is intended, in particular, for measuring steering column torsion
- Patent Title (中): 特别是用于测量转向柱扭转的位置传感器
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Application No.: US11631850Application Date: 2005-07-11
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Publication No.: US07644635B2Publication Date: 2010-01-12
- Inventor: Daniel Prudham , Gerald Masson , Antoine Foucaut
- Applicant: Daniel Prudham , Gerald Masson , Antoine Foucaut
- Applicant Address: FR Besancon
- Assignee: Moving Magnet Technologies
- Current Assignee: Moving Magnet Technologies
- Current Assignee Address: FR Besancon
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: FR0407718 20040709
- International Application: PCT/FR2005/050571 WO 20050711
- International Announcement: WO2006/008425 WO 20060126
- Main IPC: G01L3/02
- IPC: G01L3/02
Abstract:
The invention relates to a position sensor which is intended, in particular, for detecting a steering column torsion. The invention consists of: a first magnetic rotor structure (10) comprising a plurality of radially-oriented magnets; a second stator structure comprising two rings (23, 24) which extend into axially-oriented overlapping teeth (25, 26); and a third fixed collector structure (30) comprising two flux-closing parts which define at least one air gap in which at least one magneto-sensitive element is placed. The invention is characterized in that the flux-closing parts and the stator rings (23, 24) define therebetween a constant collection surface that is independent of the relative radial position of the two structures.
Public/Granted literature
- US20080250873A1 Position Sensor Which Is Intended, in Particular, for Measuring Steering Column Torsion Public/Granted day:2008-10-16
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