| 摘要 |
To provide rapid, external heating of a solid electrolyte body exposed to gases, the solid electrolyte is applied, for example by plasma spraying, to a disk-like metallic carrier plate which has an insulated coating thereover, in which the carrier plate is formed with openings throughout its circumference leaving connecting strips between the openings. Heating current conductors are connected at locations opposite the openings so that the connecting strips will form resistance paths heating the electrolyte body on the plate. A catalytically inactive electrode is applied to the electrolyte at one side of the plate, and a catalytically active coating is applied to the electrolyte at the other side of the plate. For use in sensing oxygen content of automotive vehicles, the plate is preferably held by spacers on a socket, and the spacers form terminals for both one of the heating electrodes and the electrolyte body electrodes, the other terminals being suitably connected to the plate, and to the electrolyte body, respectively.
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