Method for determining the oxygen content in gases, uninfluenced

Details Method for determining the oxygen content in gases, uninfluenced Method for determining the oxygen content in gases, uninfluenced

1980-11-19

1983-07-19

Tung, T.

Chemistry: electrical and wave energy

Processes and products

204406, 204408, 204410, 204411, 204412, 204427, G01N 2746

Patent

active

043942229

ABSTRACT:
Determining the oxygen content in gases, particularly combustion exhaust gases, uninfluenced by temperature variations of the gases by passing the gases into a first electrical measuring cell having a solid electrolyte and electrodes connected to a current source. A diffusion-limited electric current flow dependent on the oxygen content of the gases is obtained and measured as a first electrical signal. Passing an auxiliary gas with constant oxygen content into a second measuring cell similar to the first cell and under the same conditions and obtaining a second electrical signal. The quotient of the two electrical signals is a measure of the oxygen content of the gases uninfluenced by temperature variations of the gases.

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