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pH measurement system using glass pH sensor

  • US 8,436,621 B2
  • Filed: 01/15/2010
  • Issued: 05/07/2013
  • Est. Priority Date: 01/19/2009
  • Status: Active Grant
First Claim
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1. A pH measurement system using a glass pH sensor, comprising:

  • a power supply applying a voltage to the glass pH sensor through a resistor, wherein the resistor has a resistance of at least ten times less than an equivalent internal resistance of the glass pH sensor;

    a detector detecting an output voltage of the glass pH sensor; and

    a calculator calculating a pH of a solution based on the detected output voltage.

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