G - Physics – 01 – D
Patent
G - Physics
01
D
G01D 1/10 (2006.01) G01D 7/00 (2006.01) G01D 7/02 (2006.01)
Patent
CA 2271187
A method and apparatus for measuring differential and absolute concentrations of a selected gas, preferably oxygen, in two flowing gas streams is described. A reference gas and a sample gas in separate gas flow paths are passed at selected temperature, pressure and flow rate over a pair of gas sensors, connected in series with their cathodes or anodes connected together, which produce output signals proportional to the differential selected gas concentration between the sensors and the absolute selected gas pressure in each sensor. The output signals may be amplified and recorded by any conventional means.
Dowling Adrian N.
Hunt Stephen
Layzell David B.
Young Roy A.
Qubit Systems Inc.
Queen's University At Kingston
Scribner Stephen J.
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