Dynamic CO recognition in presence of interfering gases by using one MOX sensor and a selected temperature profile

被引：26

作者：

Burresi, A ^{[1
]}

Fort, A ^{[1
]}

Rocchi, S ^{[1
]}

Serrano, B ^{[1
]}

Ulivieri, N ^{[1
]}

Vignoli, V ^{[1
]}

机构：

[1] Univ Siena, Dept Informat Engn, I-53100 Siena, Italy

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2005年 / 106卷 / 01期

关键词：

electronic nose; tin oxide sensors; CO recognition; pulsed temperature techniques;

D O I：

10.1016/j.snb.2004.05.035

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The purpose of this study is the selection of an appropriate measurement technique for the detection of CO in indoor environments (100 ppm CO detection threshold limit), also in presence of high concentrations of ethanol (up to 1000 ppm) by using only one sensor. SnO2 sensors are widely used for the detection of air contaminants such as CO. Nevertheless, their application encounters some problems, first of all the effect of interfering gases. The low selectivity is in fact a well-known problem of these sensors. Moreover, the high operating temperature of metal oxide sensors implies in general high power consumption. This work aims at developing very low size and power consumption equipment, that could be battery operated, to be used in portable CO detectors. (c) 2004 Elsevier B.V. All rights reserved.

引用

页码：40 / 43

页数：4

共 16 条

[1] Burresi A, 2003, IEEE IMTC P, P590
[2] Optimized temperature-pulse sequences for the enhancement of chemically specific response patterns from micro-hotplate gas sensors
Cavicchi, RE
Suehle, JS
Kreider, KG
Gaitan, M
Chaparala, P
[J]. SENSORS AND ACTUATORS B-CHEMICAL, 1996, 33 (1-3) : 142 - 146
[3] An integrated gas sensor technology using surface micro-machining
Chan, PCH
Yan, GZ
Sheng, LY
Sharma, RK
Tang, ZN
Sin, JKO
Hsing, IM
Wang, YY
[J]. 14TH IEEE INTERNATIONAL CONFERENCE ON MICRO ELECTRO MECHANICAL SYSTEMS, TECHNICAL DIGEST, 2001, : 543 - 546
[4] CO and NO2 response of tin oxide silicon doped thin films
Comini, E
Faglia, G
Sberveglieri, G
[J]. SENSORS AND ACTUATORS B-CHEMICAL, 2001, 76 (1-3): : 270 - 274
[5] Surface state trapping models for SnO2-based microhotplate sensors
Ding, JH
McAvoy, TJ
Cavicchi, RE
Semancik, S
[J]. SENSORS AND ACTUATORS B-CHEMICAL, 2001, 77 (03) : 597 - 613
[6] Very low power consumption micromachined CO sensors
Faglia, G
Comini, E
Cristalli, A
Sberveglieri, G
Dori, L
[J]. SENSORS AND ACTUATORS B-CHEMICAL, 1999, 55 (2-3) : 140 - 146
[7] Fort A, 2000, IEEE IMTC P, P1458, DOI 10.1109/IMTC.2000.848716
[8] Investigation of CO/CH4 mixture measured with differently doped SnO2 sensors
Hahn, SH
Bârsan, N
Weimar, U
[J]. SENSORS AND ACTUATORS B-CHEMICAL, 2001, 78 (1-3) : 64 - 68
[9] Electrochemical surface reactions of intermediates formed in the oxidative ethanol adsorption on porous Pt and PtRu
Ianniello, R
Schmidt, VM
Rodríguez, JL
Pastor, E
[J]. JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1999, 471 (02) : 167 - 179
[10] Ihokura K., 1994, STANNIC OXIDE GAS SE

← 1 2 →