CALIBRATION PROCEDURE FOR SNO2-BASED GAS SENSORS

被引：14
|
作者：
BARSAN, N
TOMESCU, A
机构：
[1] Institute of Physics and Technology of Materials, Bucharest-Mǎgurele
来源：
THIN SOLID FILMS | 1995年 / 259卷 / 01期
关键词：
CHEMISORPTION; SENSORS; SURFACE CONDUCTIVITY; TIN OXIDE;
D O I：
10.1016/0040-6090(94)06415-6
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
An important goal for the development of SnO2-based gas sensors is finding calibration procedures. In this paper, a long-term calibration procedure is presented, based on the experimental finding that the dependence of the response of SnO2-based gas sensors on ambient atmosphere changes and on aging can be described in a simple way, i.e, by the changes in the exponent of the power law which describes the relationship between the conductance of the sensor and the concentration of a reducing gas. It also was found that the calibration procedure can describe the changes in the response of the sensors to a reducing gas in a changing background of another reducing gas. Using some previous calculations, use of the calibration procedure suggested is proposed.
引用
收藏
页码：91 / 95
页数：5
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