Nitrogen oxide concentration sensor

Chemistry: electrical and wave energy – Apparatus – Electrolytic

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Details

204426, 204427, 204781, 2047835, 2047845, G01N 27407

Patent

active

060713933

ABSTRACT:
A small-sized inexpensive nitrogen oxide concentration sensor capable of measuring the concentration of the nitrogen oxide in a measuring gas to a high accuracy. A first oxygen pumping cell, an oxygen concentration measuring cell and a second oxygen pumping cell are formed in different solid electrolyte layers of zirconia and electrodes of oxygen concentration measuring cell are isolated from electrodes of the oxygen pumping cells by insulating film.

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