Chemistry: electrical and wave energy – Apparatus – Electrolytic
Reexamination Certificate
2007-08-21
2007-08-21
Olsen, Kaj K. (Department: 1753)
Chemistry: electrical and wave energy
Apparatus
Electrolytic
C204S429000, C073S023320
Reexamination Certificate
active
10431534
ABSTRACT:
In an oxygen sensor that measures a limiting current of when a voltage is applied between pumping electrodes, and also performs a rich/lean judgment based on an electromotive force generated between one of the pumping electrodes and a reference electrode, an oxygen supply voltage for supplying oxygen to the reference electrode is applied, and the reference electrode is covered with a dense layer.
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Ichiyanagi Futoshi
Sakai Shoichi
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