Heated zirconia oxygen sensor for stoichiometric and lean air-fuel ratios

Book · Sun Jan 01 04:00:00 EST 1984

OSTI ID:6045283

Wiedenmann, H M; Raff, L; Noack, R

This publication describes the design and operation of an electrically heated ZrO/sub 2/ sensor and demonstrates its advantages in comparison to the present unheated sensor in a lambda = 1 system. Control ability down to very low exhaust temperatures, minimized temperature dependence and reduced aging effects result in lower emissions with the heated sensor. The application advantages in a lambda = 1 system are discussed. The second part of the paper describes the properties of this heated sensor for measurement of lean exhaust gas. The lambda-range 1.0 to 1.5 can be covered without any additional temperature compensation with sufficient accuracy and stability over life time.

• OSTI ID: 6045283
• Report Number(s): SAE-TP-840141
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
330700 -- Advanced Propulsion Systems-- Emission Control
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ACCURACY
AGING
AIR POLLUTION MONITORING
CHALCOGENIDES
COMPARATIVE EVALUATIONS
DESIGN
ELECTRIC HEATING
ENGINES
EXHAUST GASES
FLUIDS
FUEL-AIR RATIO
GASEOUS WASTES
GASES
HEAT ENGINES
HEATING
INTERNAL COMBUSTION ENGINES
MEASURING INSTRUMENTS
METERS
OPERATION
OXIDES
OXYGEN COMPOUNDS
OXYGEN METERS
SERVICE LIFE
STABILITY
STOICHIOMETRY
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS
VEHICLES
WASTES
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES