ZHANG Sixiang, WANG Peixian, ZHANG Xu, et al. Detection of odorous gas based on sensor array[J]. 2020, 39(8): 152-154+160. DOI: 10.13873/J.1000-9787(2020)08-0152-03.
Aiming at the problem that the detection instrument is difficult to make sensory evaluation of odor pollution and the cross-sensitivity phenomenon of gas sensors
a malodorous gas detection system based on sensor array is developed. Three different types of gas sensors are used to form the sensor array
and the gas path design is completed based on the pumped serial connection mode. The analysis and calculation of the malodor intensity level are carried out by the combination of partial least squares method and malodor concentration-intensity relationship.The experiment proves that the correlation coefficient between the system predicting malodor intensity and artificial olfactory discrimination is 0. 986
which has a good application prospect in the monitoring of malodorous environment.