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18 November 1999 Detection of two gases in air-conditioned system with an array of TGS sensors
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Proceedings Volume 3857, Chemical Microsensors and Applications II; (1999)
Event: Photonics East '99, 1999, Boston, MA, United States
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.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Frederic Sarry and Martine Lumbreras "Detection of two gases in air-conditioned system with an array of TGS sensors", Proc. SPIE 3857, Chemical Microsensors and Applications II, (18 November 1999);

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