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Method for detecting the presence or absence of a gas bubble in an aqueous liquid

  • US 20060042963A1
  • Filed: 08/31/2005
  • Published: 03/02/2006
  • Est. Priority Date: 09/02/2004
  • Status: Active Grant
First Claim
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1. A method for detecting the presence or absence of a gas bubble in an aqueous liquid, comprising:

  • providing an amperometric sensor positioned within a measuring chamber, wherein said amperometric sensor is configured to determine the concentration of a gaseous component dissolved in a liquid, said amperometric sensor comprising a sensitive region;

    positioning said liquid in said measuring chamber;

    taking at least one first measurement value of said gaseous component from a first portion of said liquid after a predetermined response time, said first portion located in said sensitive region of said sensor;

    moving said liquid along in said measuring chamber, such that a second portion of said liquid, which had previously been located outside said sensitive region of said amperometric sensor, is positioned in said sensitive region;

    taking at least one second measurement value of said gaseous component from said second portion of said liquid; and

    detecting the presence or absence of a gas bubble by comparing said first and second measured values.

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