This paper discusses the choice of materials of thimble automobile oxygen sesor. The electrode protection layer tends to choose MgAl2O4 as the main raw material. The electrolyte usually uses YSZ. And the electrode prefers metal-ceramic composite to noble metal.Some semiconductor metal oxides also show some potential applications as electrode, but it is still at the research stage.%论述了管式汽车氧传感器材料的选择问题,指出电极保护层趋向于以镁铝尖晶石(MgA1<,2>O<,4>)为主要原料;电解质大多采用YSZ;电极材料渐淅由贵金属偏向于金属陶瓷复合电极,一些半导体金属氧化物也表现出一定的应用前景,但仍处于研究阶段.
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