Determination of the composition of NO2 and NO mixture by thin film sensor and back-propagation network

被引:17
作者
Chen, JC [1 ]
Liu, CJ [1 ]
Ju, YH [1 ]
机构
[1] Natl Taiwan UnivSci & Technol, Lab Thin Film Sensor Res, Dept Chem Engn, Taipei 10607, Taiwan
关键词
organic thin film; gas sensor; back-propagation network; gas mixture;
D O I
10.1016/S0925-4005(99)00378-0
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
In this work, vacuum deposited thin films of lead phthalocyanine (PbPc) were employed as gas sensor to detect mixtures of NO2 and NO. Data collected from sensor responses were used to train a two-stage back-propagation network (BPN) for the determination of the gas mixture composition. The success rate for the two-stage BPN in identifying categories of gas mixture approaches 100%. The maximum error for the two-stage BPN in predicting NO concentration in a gas mixture with fixed NO2 concentration is 14.7%. (C) 2000 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:143 / 147
页数:5
相关论文
共 14 条
[1]   Multisensor microsystem for contaminants in air [J].
Althainz, P ;
Goschnick, J ;
Ehrmann, S ;
Ache, HJ .
SENSORS AND ACTUATORS B-CHEMICAL, 1996, 33 (1-3) :72-76
[2]  
Bishop C. M., 1995, NEURAL NETWORKS PATT
[3]   Concentration determination of gas by organic thin film sensor and back propagation network [J].
Chen, JC ;
Ju, YH ;
Liu, CJ .
SENSORS AND ACTUATORS B-CHEMICAL, 1999, 60 (2-3) :168-173
[4]  
Cybenko G., 1989, Mathematics of Control, Signals, and Systems, V2, P303, DOI 10.1007/BF02551274
[5]  
ENDRES HE, 1996, SENSOR ACTUAT B-CHEM, V35, P353
[6]   MULTILAYER FEEDFORWARD NETWORKS ARE UNIVERSAL APPROXIMATORS [J].
HORNIK, K ;
STINCHCOMBE, M ;
WHITE, H .
NEURAL NETWORKS, 1989, 2 (05) :359-366
[7]   Response characteristics of lead phthalocyanine gas sensor: effects of film thickness and crystal morphology [J].
Hsieh, JC ;
Liu, CJ ;
Ju, YH .
THIN SOLID FILMS, 1998, 322 (1-2) :98-103
[8]  
LIU CJ, 1996, J VAC SCI TECHNOL A, V14, P491
[9]  
MOORE SW, 1993, SENSOR ACTUAT B-CHEM, V15, P344
[10]  
NATALE CD, 1995, SENSOR ACTUAT B-CHEM, V24, P808