INFLUENCE OF ROOM TEMPERATURE ON THICK-FILM GAS SENSORS

被引：0

作者：

Giberti, Alessio ^{[1
]}

Carotta, M. C. ^{[1
]}

Guidi, V. ^{[1
]}

Malagu, C. ^{[1
]}

Martinelli, G. ^{[1
]}

机构：

[1] Univ Ferrara, Dept Phys, I-44100 Ferrara, Italy

来源：

PROCEEDINGS OF THE 13TH ITALIAN CONFERENCE ON SENSORS AND MICROSYSTEMS | 2009年

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Nanostructured semiconductor gas sensors are notoriously very sensitive to a huge number of environmental parameters, such as humidity and ambient temperature. It can be noticed that even if we keep the film temperature constant through an electronic feedback, variations of the ambient temperature lead to conductance variations. In this work we try to understand the nature of this dependence. In order to study the correlation between the response and the temperature of the film, of the air near the film and of the ambient temperature a thermal exchange mathematical model has been developed. A simple experimental configuration has been taken into account, with the heated film placed inside the protection cap, the whole sensor inside the test box and the test box subjected to environmental temperature, and the model was solved numerically and compared with the experimental data.

引用

页码：177 / 184

页数：8

共 10 条

[1]

[Anonymous], HDB HEAT TRANSFER

[2]

Bejan A., 1995, CONVECTIVE HEAT TRAN, V2nd

[3] Nanostructured thick-film gas sensors for atmospheric pollutant monitoring:: quantitative analysis on field tests [J].