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Solid polymer electrolyte oxygen sensor

  • US 20050034987A1
  • Filed: 08/12/2003
  • Published: 02/17/2005
  • Est. Priority Date: 08/12/2003
  • Status: Active Grant
First Claim
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1. A gas sensor comprising:

  • a block of a solid electrolyte;

    a sensing electrode in electrical contact with the block; and

    a counter electrode in electrical contact with the block, wherein;

    the sensing electrode catalyzes a reaction of oxygen with hydrogen ions and electrons to produce water;

    a biasing of the counter electrode breaks down water to produce electrons and hydrogen ions in the block; and

    a current through the sensing electrode caused by the electrons captured indicates a measured oxygen concentration.

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