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Method and device for eliminating electrode drift

  • US 5,766,432 A
  • Filed: 04/17/1996
  • Issued: 06/16/1998
  • Est. Priority Date: 04/17/1996
  • Status: Expired due to Fees
First Claim
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1. An electrode-containing device comprising:

  • a measuring electrode;

    a plurality of reference electrodes in electrical contact with said measuring electrode, wherein each of the reference electrodes forms an electrode pair when electrically contacted with the measuring electrode; and

    ,a microprocessor in electrical contact with each electrode pair, said microprocessor being programmed to;

    receive an electrical signal from each electrode pair;

    average together at least two of the electrical signals to determine an average electrical signal;

    calculate an electrical signal difference between at least one electrical signal and the average electrical signal; and

    compare each electrical signal difference to a predetermined drift level, wherein an electrical signal difference greater than the drift level existing for a time period greater than a predetermined drift time indicates a deficient reference electrode.

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