Back to Search Start Over

Gas identification by dynamic measurements of SnO2 sensors.

Gas identification by dynamic measurements of SnO2 sensors.

Authors :
Vorobioff, Juan
Rodriguez, Daniel
Boselli, Alfredo
Lamagna, Alberto
Rinaldi, Carlos
Source :
AIP Conference Proceedings; 8/9/2011, Vol. 1362 Issue 1, p239-240, 2p, 3 Graphs
Publication Year :
2011

Abstract

It is well know that the use of chambers with the sensors in the e-nose improves the measurements, due to a constant gas flow and the controlled temperature sensors[1]. Normally, the chamber temperature is above room temperature due to the heat generated by the heater of sensors. Also, the chamber takes a long time to reach a stable equilibrium temperature and it depends on enviromental conditions. Besides, the temperature variations modify the humidity producing variations in resistance measurements[2]. In this work using a heater system that controls the temperature of the chamber, the desorption process on SnO<subscript>2</subscript> sensor array was study[3]. Also, it was fitted the data signal sensors using a two exponential decay functions in order to determine the desorbing constant process. These constants were used to classify and identify different alcohols and their concentrations. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
0094243X
Volume :
1362
Issue :
1
Database :
Complementary Index
Journal :
AIP Conference Proceedings
Publication Type :
Conference
Accession number :
87281583
Full Text :
https://doi.org/10.1063/1.3626374