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Apparatus for measuring dissolved gases in a fluid medium

Image Number 7 for United States Patent #3988233.

Apparatus for measuring dissolved gases in a fluid medium includes a tubular member which is inserted in a pipe line through which the fluid medium flows. This tubular member thus becomes a part of the pipe line and a portion of the inner wall surface thereof serves as a membrane through which the gas to be measured diffuses into a polarographic measuring cell which surrounds the tubular member and includes an annular electrolyte chamber and cathode and anode electrodes therein.

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