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Qualitative and quantitative identification of H<sub>2</sub>S/NO<sub>2</sub> gaseous components in different reference atmospheres using a metal oxide sensor array

用一个金属氧化物传感器的冷淡的参考气氛穿的 H2S/NO2 气体的部件的质、量的鉴定

作     者:Helli, O Siadat, M Lumbreras, M 

作者机构:Univ Metz IPEM CLOES LICM F-57070 Metz France 

出 版 物:《SENSORS AND ACTUATORS B-CHEMICAL》 (传感器与执行机构,B辑:化学传感器)

年 卷 期:2004年第103卷第1-2期

页      面:403-408页

核心收录:

学科分类:12[管理学] 1201[管理学-管理科学与工程(可授管理学、工学学位)] 08[工学] 0804[工学-仪器科学与技术] 0703[理学-化学] 

主  题:gas sensor humidity effect electronic nose environmental pollution discriminant factorial analysis 

摘      要:Many environmental problems due to atmospheric pollution have increased the interest for the development of portable multisensor systems (electronic noses) for gas detection applications. In this way, we use a metal oxide sensor array dedicated to two industrial and environmental gases, alone or mixed. These gases have an antagonistic influence on the sensor layers, reducing (H2S) or oxidising (NO2). So the sensor time-responses present different behaviour according to the (low or high) concentration of the gases. In addition, humidity presents a notable reducing influence. We present in this work a new method to discriminate successfully the concentration of the atmospheric components, in three different reference atmospheres taking into account humidity and carbon dioxide. (C) 2004 Elsevier B.V. All rights reserved.

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