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Oxygen Sensing by Electrochemical Pumping
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English
Abstract
A high temperature O2 sensor is described based on electrochemical pumping with a ceramic structure incorporating two ZrO2 O2 concentration cells. Two modes of operation, steady state and oscillatory, are described. In each case at least a linear sensitivity to ambient O2 concentration can be achieved. A potential application is that of exhaust-gas O2 sensing for the feedback control of intake air-to-fuel ratios at values lean of stoichiometry.
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Authors
Citation
Hetrick, R., Fate, W., and Vassell, W., "Oxygen Sensing by Electrochemical Pumping," SAE Technical Paper 810433, 1981, https://doi.org/10.4271/810433.Also In
References
- Dietz H. Haecker W. Jahnke H. “Advances in Electrochemistry and Electrochemical Engineering” Gerischer H. Tobias C. Wiley New York 1977 10 1
- Hetrick R. E. Logothetis E. M. Hohnke D. K. “Proceedings of the Topical Conference on Physics in the Automotive Industry” to be published by AIP
- Tien T. Y. Stadler H. L. Gibbons E. F. Zachmonidis P. J. “TiO 2 as an Air-to-Fuel Ratio Sensor for Automobile Exhausts” J. Am. Ceramic Soc. 54 280 1975
- Yuan D. Kroger F. A. “Stabilized Zirconia as an Oxygen Pump” J. Electrochem. Soc. 116 594 1969
- Hetrick R. E. Fate W. A. Vassell W. C. “Oxygen Sensing by Electrochemical Pumping” Applied Physics Letters, to be published