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12 April 2010 Electronic tongue system for remote multi-ion sensing using blind source separation and wireless sensor network
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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.
© (2010) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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, and Wei-Chiang Lin "Electronic tongue system for remote multi-ion sensing using blind source separation and wireless sensor network", Proc. SPIE 7703, Independent Component Analyses, Wavelets, Neural Networks, Biosystems, and Nanoengineering VIII, 77030A (12 April 2010); https://doi.org/10.1117/12.850128
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