基于集成气体传感器阵列的电子鼻系统动态响应特性分析  

Analysis of Dynamic Response Characteristic of an Electronic Nose System Based on Integrated Gas Sensors Array

作　　者：杨建华[1] 侯宏[1] 王磊[2] 王米娜[1] 王晗[1] 

机构地区：[1]西北工业大学,陕西西安710072 [2]同济大学中德学院,上海200092

出　　处：《西北工业大学学报》2003年第4期435-438,共4页Journal of Northwestern Polytechnical University

基　　金：国家自然科学基金 ( 6 990 2 0 0 6 );西北工业大学英才计划

摘　　要：采用德国 Jenasensoric e.V研制的电子鼻和自行设计的实验系统 ,分别以纯净空气及乙醇或葡萄酒作为载气及分析样本 ,对电子鼻系统动态响应特性与酒类样本、样本温度、环境湿度、样本浓度间的依赖关系进行了实验分析 。In actual applications, the static response of an electronic nose is usually used as analytical information, with its dynamic response often neglected. Much more accurate qualitative and quantitative identification of gas/odor can be expected if both static and dynamic responses of an electronic nose are used in gas analysis. In this paper, we analyze experimentally the effects of sample, sample concentration, sample temperature, humidity of environment respectively on dynamic response of an electronic nose. The electronic nose system in the experimental system we used was “Multigassensors Electronic Board” developed by Jenasensoric e.V, a German firm; they were described in Ref.3. Section 2 gives experimental results and their analyses. We used pure and dry air as carrier air. Subsection 2.1 deals with effect of different samples on the dynamic response of the electronic nose system we used; the six different samples used were 10% ethanol and five different kinds of wine; Fig.1 shows the sample dependent dynamic response characteristic curves. Subsection 2.2 deals with the effect of different sample concentrations on the dynamic response of the electronic nose system we used; the seven different concentrations of ethanol used were 5%, 10%, 20%, 30%, 50%, 60%, and 80%; Fig.2 shows the concentration dependent dynamic response characteristic curves. Subsection 2.3 deals with the effect of different sample temperatures on the dynamic response of the electronic nose system we used; the seven different temperatures used were 40℃, 50℃, 60℃, 70℃, 80℃, 90℃, and 100℃; Fig.3 shows the temperature dependent dynamic response characteristic curves. Subsection 2.4 deals with the effect of different environmental humidities on the dynamic response of the electronic nose system we used; humidity is expressed by the amount of pure water evaporated; the five different amounts of pure water evaporated were 1μl, 2μl, 3μl, 4μl, and 5μl; Fig.4 shows the humidity dependent dynamic response characteristic cur

关 键 词：集成气敏传感器阵列 电子鼻 动态响应特性 

分 类 号：TP277[自动化与计算机技术—检测技术与自动化装置]