ZHOU Zhen, JIAN Jia-wen, WU Xiang, et al. Influence of CO on the characteristics of limiting current oxygen sensor[J]. 2012, 31(5): 20-22. DOI: 10.13873/j.1000-97872012.05.044.
The influence of CO on the characteristics of limiting current oxygen sensor CO-O2-N2 atmospheres is investigated
the electrical properties of limiting current oxygen sensor have been tested in different CO volume fraction in the experiment.The experimental results demonstrate that the V-I curves appear good limiting current platform in CO-O2-N2 atmospheres with CO volume fraction changed from 0.75 % to 4.25 % and O2 volume fraction remained 7.5 %
10 %
respectively.The limiting current IL decreased with the increase of CO volume fraction.The value of IL which got from the current platform and-ln(1-(XO2-4 7XCO)) shows a good linear relationship.The O2 up-response time and down-response time of sensor to CO are within 10s and 15s
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