Study of thermal transfer in oxygen lambda sensors
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Abstract
Chemical sensors based on zirconia solid electrolyte are widely used in cars for control of air/fuel ratio. Their application is based on the sharp change of electromotive force (emf) at the stoichiometric point (lambda λ = 1). On the basis of experimental measurements of electrical input into the sensor heater and emf’s at selected temperatures under controlled conditions, a heat transfer model has been constructed to characterize the behavior of oxygen lambda sensors.
Keywords
Oxygen lambda sensor Thermal transfer Zirconia Solid electrolyte Heat transferReferences
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