Position sensor which is intended, in particular, for measuring steering column torsion
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United States of America Patent
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Jan 12, 2010
Grant Date -
Oct 16, 2008
app pub date -
Jul 11, 2005
filing date -
Jul 9, 2004
priority date (Note) -
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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.
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