Method for detecting the presence or absence of a gas bubble...

Details Method for detecting the presence or absence of a gas bubble... Method for detecting the presence or absence of a gas bubble...

2011-01-11

2011-01-11

Nguyen, Nam X (Department: 1795)

Electrolysis: processes, compositions used therein, and methods

Electrolytic analysis or testing

C205S782000, C204S431000

Reexamination Certificate

active

07867375

ABSTRACT:
A method for detecting the presence or absence of a gas bubble in an aqueous liquid is provided comprising providing a sensor positioned within a measuring chamber, wherein the sensor is configured to determine the concentration of a gaseous component dissolved in a liquid, the sensor comprising a sensitive region; setting a gas partial pressure at the sensor, wherein the gas partial pressure differs from an expected value of the gas partial pressure of the gaseous component of a liquid to be measured; exposing the sensor to the liquid to be measured; resting the liquid until standstill is attained; recording a signal from the sensor as a function of time until the signal becomes constant; and detecting the presence or absence of a gas bubble from the variation of the signal over time. The gas bubble, if present, is in at least partial contact with the sensitive region of the sensor.

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