Articles | Volume 3, issue 2
https://doi.org/10.5194/jsss-3-253-2014
https://doi.org/10.5194/jsss-3-253-2014
Regular research article
 | 
21 Oct 2014
Regular research article |  | 21 Oct 2014

Selective detection of hazardous VOCs for indoor air quality applications using a virtual gas sensor array

M. Leidinger, T. Sauerwald, W. Reimringer, G. Ventura, and A. Schütze

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Latest update: 27 Mar 2024
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Short summary
An approach for detecting hazardous volatile organic compounds (VOCs) in ppb and sub-ppb concentrations is presented. Using metal oxide semiconductor (MOS) gas sensors in temperature cycled operation, VOCs in trace concentrations are successfully identified against a varying ethanol background of up to 2 ppm. For signal processing, linear discriminant analysis is applied to single sensor data and sensor fusion data. Integrated gas sensor systems using the same MOS sensors were characterized.