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Magnetic angular position sensor apparatus

  • US 6,806,702 B2
  • Filed: 10/09/2002
  • Issued: 10/19/2004
  • Est. Priority Date: 10/09/2002
  • Status: Expired due to Fees
First Claim
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1. An angular position sensing apparatus, said apparatus comprising:

  • a rotatable base;

    at least two magnets located proximate to one another upon said rotatable base, wherein said at least two magnets are magnetized parallel and opposite to one another to create a uniform magnetic field thereof; and

    a sensor radially centered between said at least two magnets and displaced an axial distance from the top surfaces of said at least two magnets, such that said sensor comes into contact with said uniform magnetic field without overlapping said rotating at least two magnets to sense a change in angular position associated with said rotatable base.

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