YAN Deng-feng, XU Li-ping, PENG Jia-zhuo, et al. Research on gas sensitive characteristic of solid electrolyte potentiometric methane gas sensor[J]. 2018, (4): 31-33.
YAN Deng-feng, XU Li-ping, PENG Jia-zhuo, et al. Research on gas sensitive characteristic of solid electrolyte potentiometric methane gas sensor[J]. 2018, (4): 31-33. DOI: 10.13873/J.1000-9787(2018)04-0031-03.
Effects of methane concentration and operating temperature on zirconia-based mixed potential sensor responsing value are studied. Yttria-stabilized zirconia(YSZ) is adopted as electrolyte and SnO
2
as sensing electrode for measurement.The sensor exhibits superior sensing characteristics to(200
1 000) × 10
-6
methane. The sensor response indicates a log-linear relationship with the methane concentration. The sensitivity of the sensor is high at 650 ℃
and the response and recovery time are less than 5 s.