Sensors 2012, 12(12), 16404-16419; doi:10.3390/s121216404
Article

Detecting Changes of a Distant Gas Source with an Array of MOX Gas Sensors

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Received: 4 September 2012; in revised form: 22 November 2012 / Accepted: 26 November 2012 / Published: 27 November 2012
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: We address the problem of detecting changes in the activity of a distant gas source from the response of an array of metal oxide (MOX) gas sensors deployed in an open sampling system. The main challenge is the turbulent nature of gas dispersion and the response dynamics of the sensors. We propose a change point detection approach and evaluate it on individual gas sensors in an experimental setup where a gas source changes in intensity, compound, or mixture ratio. We also introduce an efficient sensor selection algorithm and evaluate the change point detection approach with the selected sensor array subsets.
Keywords: MOX sensor; open sampling system; sensor selection; change point detection
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MDPI and ACS Style

Pashami, S.; Lilienthal, A.J.; Trincavelli, M. Detecting Changes of a Distant Gas Source with an Array of MOX Gas Sensors. Sensors 2012, 12, 16404-16419.

AMA Style

Pashami S, Lilienthal AJ, Trincavelli M. Detecting Changes of a Distant Gas Source with an Array of MOX Gas Sensors. Sensors. 2012; 12(12):16404-16419.

Chicago/Turabian Style

Pashami, Sepideh; Lilienthal, Achim J.; Trincavelli, Marco. 2012. "Detecting Changes of a Distant Gas Source with an Array of MOX Gas Sensors." Sensors 12, no. 12: 16404-16419.

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