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Angle position transmitter having a static magnetic field sensor and a magnet on the transmitter shaft for detecting a full revolution of the transmitter shaft

  • US 5,072,181 A
  • Filed: 12/15/1987
  • Issued: 12/10/1991
  • Est. Priority Date: 12/22/1986
  • Status: Expired due to Fees
First Claim
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1. An angle position transmitter for determining a position angle for a rotatable machine, comprising:

  • a transmitter shaft for transmitting rotary motion from the machine part;

    a photoelectrically scannable transmitter disc mounted on said transmitter shaft, for detecting the angle position of the shaft within one revolution;

    at least two anti-friction bearings positioned along said transmitter shaft supporting said shaft;

    at least one magnet arranged on said transmitter shaft between said bearings so as to rotate with said transmitter shaft and make full rotations; and

    at least one stationary magnetic field sensor for detecting a full revolution of said magnet and indicating the direction of the rotation of said transmitter shaft.

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