TRIS Online Record

Title	ZIRCONIA-BASED LEAN AIR-FUEL RATIO SENSOR
Accession No	00183284
Authors	Howarth, D S; Wilhelm, R V
Journal Title	Publication of: Society of Automotive Engineers
Corp. Authors / Publisher	Society of Automotive Engineers
Publication Date	19780000
Description	p. 47-52; References(17)
Abstract	An experimental sensor has been developed to indicate the air-fuel ratio of an engine operating on lean mixtures. Stabilized zirconia doped with iron was used as the sensor electrolyte. These sensors are internally temperature compensated, eliminating the need for additional temperature sensing or electronics. Sensor output is responsive to exhaust oxygen content, but is independent of exhaust temperatures above 450 degree C at 18:1. Addition of iron increased uniformity of output among sensors.
Supplemental Information	SAE Special Publication SP-427; Automotive Application of Sensors, SAE Int Automotive Engineering Congress and Exposition, Detroit, Michigan, Feb 27-Mar 3, 1978.
TRT Terms	Design ; Exhaust gases ; Fuel air mixtures ; Lean fuel mixtures ; Refractory materials ; Sensors ; Vehicle power plants ; Zirconium
Other Terms	Air-fuel ratio; Automobile engines; Lean fuel engine; Zirconia
Subject Areas	H52 HUMAN FACTORS
Report Number	SAE SP-427
Availability	Society of Automotive Engineers
Document Source	Engineering Index Source Data: EIX780900361
TRIS Files	HRIS
Database	TRIS Online

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