INTELLIGENT VAPOR DISCRIMINATION USING A COMPOSITE 12-ELEMENT SENSOR ARRAY

被引：77
作者：
SHURMER, HV
GARDNER, JW
CORCORAN, P
机构：
[1] Department of Engineering, University of Warwick, Coventry
来源：
SENSORS AND ACTUATORS B-CHEMICAL | 1990年 / 1卷 / 1-6期
关键词：
Alcohols--Sensors - Semiconducting Tin Compounds - Vapors--Sensors;
D O I：
10.1016/0925-4005(90)80211-H
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A multisensor system has been developed that is capable of discriminating between complex vapours or gaseous mixtures. The system is based on an array of 12 discrete tin oxide semi-conductor sensing elements, each possessing different characteristics whilst being sensitive to a broad spectrum of gases. A weighted fault-tolerant least-squares method is used to analyse the multisensor data. Results show the multisensor system successfully discriminates (100%) between methanol, ethanol, propan-2-ol and butan-1-ol. Its overall ability to distinguish between beverages and spirits or mixtures is somewhat lower (83%) underpinning a need in this case for complementary sensing materials. © 1990.
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页码：256 / 260
页数：5
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