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

Sohn, J.H. and Atzeni, M. and Zeller, L. and Pioggia, G. (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.

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Article Link(s): http://dx.doi.org/10.1016/j.snb.2007.11.009

Publisher URL: http://www.elsevier.com

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.

Special Issue: Selected Paper from the 12th International Symposium on Olfaction and Electronic Noses - ISOEN 2007, International Symposium on Olfaction and Electronic Noses.

Item Type:Article
Business groups:Agri-Science, Crop and Food Science, Animal Science
Additional Information:© Crown Copyright. © Elsevier B.V.
Keywords:Calibration; electronic nose; metal oxide semiconductor sensor; partial least squares; atmospheric humidity; electronic equipment; least squares approximations; sensors; partial least squares (PLS); MOS devices.
Subjects:Technology > Technology (General)
Deposited On:12 Jan 2009 05:07
Last Modified:26 Oct 2011 02:27

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