THICK-FILM ZINC-OXIDE GAS SENSOR FOR THE CONTROL OF LEAN AIR-TO-FUEL RATIO IN DOMESTIC COMBUSTION SYSTEMS

被引:77
作者
KWON, CH [1 ]
HONG, HK [1 ]
YUN, DH [1 ]
LEE, KC [1 ]
KIM, ST [1 ]
ROH, YH [1 ]
LEE, BH [1 ]
机构
[1] GOLDSTAR LIVING SYST LAB,GURO GU,SEOUL 152020,SOUTH KOREA
关键词
DOMESTIC COMBUSTION SYSTEMS; GAS SENSORS; THICK-FILM SENSORS; ZINC OXIDE;
D O I
10.1016/0925-4005(95)85134-8
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
We have investigated the sensing properties of Al2O3-doped ZnO for combustion control in lean-burn conditions. Planar-type sensing elements made of hearer, electrode and sensing layer were formed on an alumina substrate using a screen-printing technique. Our exhaust-gas sensor exhibits significant resistance changes even under lean conditions, apparently due to the simultaneous functioning of bulk and surface conduction mechanisms. Utilizing the sensor for the feedback control of a domestic boiler, we have demonstrated that the system can be successfully operated at the best combustion conditions.
引用
收藏
页码:610 / 613
页数:4
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