Characterisation of humidity dependence of a metal oxide semiconductor sensor array using partial least squares

Sohn, Jae Ho and Atzeni, Michael and Zeller, Les and Pioggia, Giovanni (2008) Characterisation of humidity dependence of a metal oxide semiconductor sensor array using partial least squares. Sensors and Actuators B: Chemical, 131 (1). pp. 230-235. ISSN 0925-4005

Abstract

[Abstract]: Metal oxide semiconductor (MOS) sensors are a class of chemical sensors that have potential for being a practical core sensor module for an electronic nose system in various environmental monitoring applications. However, the responses of these sensors may be affected by changes in humidity and this must be taken into consideration when developing calibration models. This paper characterises the humidity dependence of a sensor array which consists of 12 MOS sensors. The results were used to develop calibration models using partial least squares (PLS). Effects of humidity on the response of the sensor array and predictive ability of partial least squares are discussed. It is shown that partial least squares can provide proper calibration models to compensate for effects caused by changes in humidity.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Author version not held.
Depositing User: epEditor USQ
Faculty / Department / School: Current - USQ Other
Date Deposited: 06 Jul 2010 00:37
Last Modified: 16 Oct 2014 01:42
Uncontrolled Keywords: partial least squares; metal oxide semiconductor sensor; calibration; electronic nose
Fields of Research (FOR2008): 07 Agricultural and Veterinary Sciences > 0701 Agriculture, Land and Farm Management > 070107 Farming Systems Research
09 Engineering > 0907 Environmental Engineering > 090703 Environmental Technologies
10 Technology > 1001 Agricultural Biotechnology > 100101 Agricultural Biotechnology Diagnostics (incl. Biosensors)
Identification Number or DOI: doi: 10.1016/j.snb.2007.11.009
URI: http://eprints.usq.edu.au/id/eprint/8349

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