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Proceedings Paper

Electronic tongue system for remote multi-ion sensing using blind source separation and wireless sensor network
Author(s): Wen-Yan Chung; Febus Reidj G. Cruz; Harold Szu; Dorota G. Pijanowska; Marek Dawgul; Wladyslaw Torbicz; Piotr B. Grabiec; Bohdan Jarosewicz; Jung-Lung Chiang; Cheanyeh Cheng; Kuo-Chung Chang; Le Thanh Truc; Wei-Chiang Lin
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Paper Abstract

This paper presents an electronic tongue system with blind source separation (BSS) and wireless sensor network (WSN) for remote multi-ion sensing applications. Electrochemical sensors, such as ion-sensitive field-effect transistor (ISFET) and extended-gate field-effect transistor (EGFET), only provide the combined concentrations of all ions in aqueous solutions. Mixed hydrogen and sodium ions in chemical solutions are observed by means of H+ ISFET and H+ EGFET sensor array. The BSS extracts the concentration of individual ions using independent component analysis (ICA). The parameters of ISFET and EGFET sensors serve as a priori knowledge that helps solve the BSS problem. Using wireless transceivers, the ISFET/EGFET modules are realized as wireless sensor nodes. The integration of WSN technology into our electronic tongue system with BSS capability makes distant multi-ion measurement viable for environment and water quality monitoring.

Paper Details

Date Published: 12 April 2010
PDF: 8 pages
Proc. SPIE 7703, Independent Component Analyses, Wavelets, Neural Networks, Biosystems, and Nanoengineering VIII, 77030A (12 April 2010); doi: 10.1117/12.850128
Show Author Affiliations
Wen-Yan Chung, Chung Yuan Christian Univ. (Taiwan)
Febus Reidj G. Cruz, Chung Yuan Christian Univ. (Taiwan)
Harold Szu, The George Washington Univ. (United States)
Dorota G. Pijanowska, Polish Academy of Sciences (Poland)
Marek Dawgul, Polish Academy of Sciences (Poland)
Wladyslaw Torbicz, Polish Academy of Sciences (Poland)
Piotr B. Grabiec, Institute of Electron Technology (Poland)
Bohdan Jarosewicz, Institute of Electron Technology (Poland)
Jung-Lung Chiang, Chung-Chou Institute of Technology (Taiwan)
Cheanyeh Cheng, Chung Yuan Christian Univ. (Taiwan)
Kuo-Chung Chang, Chung Yuan Christian Univ. (Taiwan)
Le Thanh Truc, Chung Yuan Christian Univ. (Taiwan)
Wei-Chiang Lin, Chung Yuan Christian Univ. (Taiwan)

Published in SPIE Proceedings Vol. 7703:
Independent Component Analyses, Wavelets, Neural Networks, Biosystems, and Nanoengineering VIII
Harold H. Szu; F. Jack Agee, Editor(s)

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