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Humidity sensor

  • US 20070132542A1
  • Filed: 12/12/2005
  • Published: 06/14/2007
  • Est. Priority Date: 12/12/2005
  • Status: Active Grant
First Claim
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1. A humidity sensitive resistor comprising:

  • a substrate having a first surface and a second surface spaced from and generally opposite to said first surface, said substrate being in a configuration having at least one permanent bend;

    a first layer of electrically conductive material disposed on said substrate in a desired configuration having a first end and a second end, said first layer of electrically conductive material exposed to atmospheric conditions and having a static condition moisture content, said first layer of electrically conductive material having an electrical resistance that changes predictably from said static condition moisture content when an amount of moisture content in contact with said first layer of conductive material changes from said static condition;

    a second layer of electrically conductive material electrically connected to a first end of said first layer of conductive material; and

    a third layer of electrically conductive material electrically connected to a second end of said first layer of conductive material.

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