Method of and apparatus for monitoring concentration of gas in a liquid
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United States of America Patent
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Nov 5, 1985
Issued Date -
N/A
app pub date -
Aug 18, 1983
filing date -
Aug 24, 1982
priority date (Note) -
Expired
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Abstract
There is described a method of and apparatus for monitoring the concentration of gas in a liquid. The apparatus includes a semi-permeable diaphragm across the face of which the liquid flows. Gas contained in the liquid permeates through the diaphragm into a chamber and the pressure within the chamber is measured. This pressure is representative of the concentration of gas in the liquid and permits control of the quantity of gas injected. In particular there is described a method and apparatus for monitoring the concentration of two different gases which may be dissolved in a flowing liquid.
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