Detection of two gases in air-conditioned system with an array of TGS sensors

Frederic Sarry; Martine Lumbreras

doi:10.1117/12.370289

18 November 1999 Detection of two gases in air-conditioned system with an array of TGS sensors

Frederic Sarry, Martine Lumbreras

Proceedings Volume 3857, Chemical Microsensors and Applications II; (1999) https://doi.org/10.1117/12.370289
Event: Photonics East '99, 1999, Boston, MA, United States

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.

Citation Download Citation

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); https://doi.org/10.1117/12.370289

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