Study of the interferences of NO2 and CO in solid state commercial sensors

被引：12

作者：

Martín, MA

Santos, JP

Vásquez, H

Agapito, JA

机构：

[1] Univ Complutense Madrid, Fac Ciencias Fis, Dept Fis Aplicada 3, E-28040 Madrid, Spain

[2] Univ Nacl Ingn, Fac Ciencias Fis, Lima, Peru

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 1999年 / 58卷 / 1-3期

关键词：

sensor array; artificial neural network; NO2 and CO quantification; commercial sensors;

D O I：

10.1016/S0925-4005(99)00128-8

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Commercial solid state gas sensors have been used to measure NO2 and CO concentrations in the range of the first alarm thresholds for urban environments. Their mutual interference has been studied at three operating temperature ranges. The results showed that different sensitivities and selectivities can be obtained with the same type of sensors. This fact is used to make a multisensorial system based on commercial solid state gas sensors. Using artificial neural networks analysis, we detect the presence of NO2 and CO gases, and even measure the concentration of both gases with a sufficient accuracy. (C) 1999 Elsevier Science S.A. All rights reserved.

引用

页码：469 / 473

页数：5

共 15 条

[1] EXTENDED STUDIES OF THE AUTOMATED ODOR-SENSING SYSTEM BASED ON PLURAL SEMICONDUCTOR GAS SENSORS WITH COMPUTERIZED PATTERN-RECOGNITION TECHNIQUES [J].