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Proceedings Paper

Characteristics of limiting current-type oxygen sensor
Author(s): Xiaoguang Pan; Qinghua Tang
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Paper Abstract

In this paper, a new of oxygen sensor using the electrochemical oxygen pump of ZrO2-8Y2O3 zirconia electrolyte the artificial oxygen diffusion overpotential behavior has been investigated from the theoretical and practical viewpoints. The factors influencing the limiting current in the normal diffusion region. That is the oxygen molar fraction, gaseous diffusion coefficient, the temperature, the pressure, and the two geometric quantities (area and length). But the limiting current-type zirconia oxygen sensor shows an abnormal output in an exhaust gas at low excess air ratio. The influence of components of the exhaust gas and the mechanism of generation of the abnormal output are reported.

Paper Details

Date Published: 9 May 2000
PDF: 4 pages
Proc. SPIE 4077, International Conference on Sensors and Control Techniques (ICSC 2000), (9 May 2000); doi: 10.1117/12.385593
Show Author Affiliations
Xiaoguang Pan, Huazhong Univ. of Science and Technology (China)
Qinghua Tang, Huazhong Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 4077:
International Conference on Sensors and Control Techniques (ICSC 2000)
Desheng Jiang; Anbo Wang, Editor(s)

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