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Proceedings Paper

Detection of two gases in air-conditioned system with an array of TGS sensors
Author(s): Frederic Sarry; Martine Lumbreras
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Paper Abstract

In this work, an identification system based on an array of semiconductor tin dioxide gas sensors has been developed. This system has proven a good success rate in the discrimination of carbon dioxide, forane or their mixtures without a sensor dedicated to carbon dioxide. After a characterization of the five sensor array, pre-treatment was tested on the collected data to select the well representing parameters. Then the information contained in the resulting look-up table was analyzed with PCA, but no significant result was observed. Discriminant factorial analysis was then used and has shown a better separation of the different clusters and unknown data were taken to validate the classification. So our results show that a reliable system can be designed using non-dedicated chemical semiconductor gas sensor.

Paper Details

Date Published: 18 November 1999
PDF: 8 pages
Proc. SPIE 3857, Chemical Microsensors and Applications II, (18 November 1999); doi: 10.1117/12.370289
Show Author Affiliations
Frederic Sarry, Univ. de Metz (France)
Martine Lumbreras, Univ. de Metz (France)

Published in SPIE Proceedings Vol. 3857:
Chemical Microsensors and Applications II
Stephanus Buettgenbach, Editor(s)

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