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Moisture sensor with autobalance control

  • US 6,268,612 B1
  • Filed: 06/12/2000
  • Issued: 07/31/2001
  • Est. Priority Date: 12/30/1998
  • Status: Expired due to Term
First Claim
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1. A method of detecting moisture on the surface of a material comprising:

  • providing a sensor mounted to the material and having an emitter for generating an emitter signal which is influenced by the presence of moisture on the surface of the material, and a detector for receiving the emitter signal and contributing to the production of a detector output signal;

    filtering unwanted signal components from the detector output signal;

    amplifying the detector output signal to produce an amplified signal; and

    at least partially canceling the detector output signal thereby reducing clipping of the amplified signal.

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