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Non-contacting potentiometer

  • US 5,049,827 A
  • Filed: 01/12/1990
  • Issued: 09/17/1991
  • Est. Priority Date: 01/12/1990
  • Status: Expired due to Fees
First Claim
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1. A non-contacting potentiometer comprising:

  • an impedance element formed to extend along a predetermined physical path and having terminals at opposite ends thereof;

    means for applying an AC activating signal to said terminals;

    a movable probe mounted to extend in spaced relationship to said impedance element, said probe moving along said path and sensing the signal level at various locations along said impedance element; and

    circuit means coupled to said movable probe, said circuit means receiving the signal level on said probe for providing an output signal representative of the movement of said probe.

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