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Electrochemical measuring cell having an ancillary electrode

  • US 4,624,261 A
  • Filed: 09/03/1985
  • Issued: 11/25/1986
  • Est. Priority Date: 09/07/1984
  • Status: Expired due to Fees
First Claim
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1. An electrochemical measuring cell comprising:

  • an electrolyte;

    a measuring electrode disposed in said electrolyte;

    a counter electrode also disposed in said electrolyte;

    a housing for holding said electrolyte;

    a diffusion and sensing member including a diffusion membrane for separating said electrolyte from the ambient and having an outer surface facing away from said electrolyte; and

    , a coating applied to said outer surface of said diffusion membrane for sensing an external electrical potential, said coating being electrically conductive and permeable to gas; and

    ,electric circuit means mounted on said housing for conducting said external potential away from said coating and making the same accessible for measurement.

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