| 摘要 |
A durable and relatively inexpensive air/fuel ratio sensor for detecting oxygen concentration in exhaust gases of internal combustion engines, that does not require a separate reference atmosphere. A body of stabilized zirconium dioxide with two opposite major faces serves as a solid oxygen ion electrolyte. A catalytic electrode is on one of the faces, while a noncatalytic electrode is on the other face. The body is mounted in an exhaust pipe so that both of the electrodes are exposed to the exhaust gases.
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