Chemistry: electrical and wave energy – Apparatus – Electrolytic
Patent
1997-05-30
2000-06-06
Tung, T.
Chemistry: electrical and wave energy
Apparatus
Electrolytic
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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Ando Masashi
Ishida Noboru
Nadanami Norihiko
Oshima Takafumi
Sugaya Satoshi
NGK Spark Plug Co. Ltd.
Tung T.
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