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

Authors
KWON CH HONG HK YUN DH LEE KC KIM ST ROH YH LEE BH
Citation
Ch. Kwon et al., THICK-FILM ZINC-OXIDE GAS SENSOR FOR THE CONTROL OF LEAN AIR-TO-FUEL RATIO IN DOMESTIC COMBUSTION SYSTEMS, Sensors and actuators. B, Chemical, 25(1-3), 1995, pp. 610-613
Citations number
5
Categorie Soggetti
Engineering, Eletrical & Electronic","Instument & Instrumentation
Journal title
Sensors and actuators. B, Chemical → ACNP
ISSN journal
09254005
Volume
25
Issue
1-3
Year of publication
1995
Pages
610 - 613
Database
ISI
SICI code
0925-4005(1995)25:1-3<610:TZGSFT>2.0.ZU;2-2
Abstract
We have investigated the sensing properties of Al2O3-doped ZnO for com bustion 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 ex hibits significant resistance changes even under lean conditions, appa rently due to the simultaneous functioning of bulk and surface conduct ion mechanisms. Utilizing the sensor for the feedback control of a dom estic boiler, we have demonstrated that the system can be successfully operated at the best combustion conditions.