Characteristics of limiting current-type oxygen sensor

Xiaoguang Pan; Qinghua Tang

doi:10.1117/12.385593

9 May 2000 Characteristics of limiting current-type oxygen sensor

Xiaoguang Pan, Qinghua Tang

Proceedings Volume 4077, International Conference on Sensors and Control Techniques (ICSC 2000); (2000) https://doi.org/10.1117/12.385593
Event: International Conference on Sensors and Control Techniques (ICSC2000), 2000, Wuhan, China

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.

Citation Download Citation

Xiaoguang Pan and Qinghua Tang "Characteristics of limiting current-type oxygen sensor", Proc. SPIE 4077, International Conference on Sensors and Control Techniques (ICSC 2000), (9 May 2000); https://doi.org/10.1117/12.385593

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