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Position detecting sensor

  • US 7,005,848 B2
  • Filed: 06/19/2003
  • Issued: 02/28/2006
  • Est. Priority Date: 06/19/2002
  • Status: Active Grant
First Claim
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1. A position detecting sensor comprising:

  • a magnet;

    a magnetic detecting element; and

    a yoke adjacent to or near the magnet,wherein a detected member made of a magnetic material is positioned at one side of the magnet so as to be adjacent to the magnet or so as to be away therefrom, the magnet is oriented to generate a magnetic line of flux which flows from a north pole to a south pole in a direction complying with an extending direction of the detected member, and the magnetic detecting element is positioned in an area in which a magnetic flux density generated by the magnet is relatively low when the detected member is positioned away from the magnet and a magnetic flux density is relatively high when the detected member is positioned adjacent to the magnet.

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