Influence of Carbon Dioxide on the Characteristics of a Limiting Current Oxygen Sensor
The influences of CO2 on the characteristics of a limiting current oxygen sensor in CO2-O2-N2 atmospheres were investigated. The studies indicated that the I-V curves appeared two-stage current plateau at (0~2) V operation voltage in CO2-O2-N2 atmospheres with CO2 concentration changed from 2.03％ up to 12.18％ and oxygen concentration remained at 5％, 7.5％.. 10％, respectively. The first saturated current IL1 appeared in the voltage range of 0.8~1.4 V while the second saturated current I1.2 appeared in 1.65~ 1.82 V, respectively. The difference between the two current platforms (IL2-Il1) and (-In(1-XCO2)) showed a good linear relationship. And the oxygen sensors up-response time and down-response time to CO2 were both within 30s. The concentration of CO2 can be detected at a high working voltage.
Limiting current oxygen sensor I-V curves CO2- O2-N2
Zhen Zhou Jiawen Jian Xiang Wu
The College of information science and engineering of Ningbo University, Ningbo, Zhejiang, China
国际会议
合肥
英文
4202-4205
2011-09-23（万方平台首次上网日期，不代表论文的发表时间）