The environment pollution caused by the exhaust gas from automobiles becomes more and more serious . due to the impetus on environmental consciousness and emission control regulations the need for highly efficient combustion engines has led to a quest for an efficient solid state oxygen sensor 汽車排放帶來的大氣污染日益嚴(yán)重,目前較為有效的治理手段是采用閉環(huán)電子控制系統(tǒng)加三元催化轉(zhuǎn)化器,在這個系統(tǒng)中氧傳感器是保證系統(tǒng)正常工作的關(guān)鍵部件。