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Gas identification by dynamic measurements of SnO2 sensors.
Gas identification by dynamic measurements of SnO2 sensors.
- 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