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Performance Evaluation of a Novel iTongue for Indian Black Tea Discrimination

IR@CSIR-IHBT

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Title Performance Evaluation of a Novel iTongue for
Indian Black Tea Discrimination
 
Creator Bhondekar, Amol P
Gulati, Ashu
Singla, Madan L.
Kapur, Pawan
Vig, Renu
 
Subject Plant sciences
Plant Biotechnology
 
Description Abstract—In this work, the multi-electrode-single-frequency
(MESF), multi-frequency-single-electrode (MFSE), and multi-frequency-
multi-electrode (MFME) impedance responses of an
impedance-Tongue reported previously, are evaluated for their
discriminability of Indian Black Teas. Principal component
analysis (PCA) in conjunction with a cluster validity measure,
Davis–Bouldin Index (DBI), has been used for discriminability
evaluation. The discriminabilities of electrode specific frequency
segments chosen by optimization algorithms, namely, Genetic
Algorithm (GA) and Particle Swarm Optimization (PSO) have
also been evaluated. The results show that the MFSE impedance
response of Gold electrode gives the best discriminability without
compromising the system complexity as against MESF, MFSE,
MFME, and GA/PSO-optimized response. The results also suggest
that the cross-sensitivity of electrodes may be enhanced by
selecting optimum frequencies and/or electrodes, paralleling the
practice of modifying the electrodes. This opens up a new approach
towards qualitative and quantitative analysis of complex
liquids.
Index Terms—Davis–Bouldin index (DBI), electrochemical
impedance spectroscopy, electronic tongue, Indian black tea.
 
Date 2011
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://ihbt.csircentral.net/1043/1/2_Pergormance_2011.pdf
Bhondekar, Amol P and Gulati, Ashu and Singla, Madan L. and Kapur, Pawan and Vig, Renu (2011) Performance Evaluation of a Novel iTongue for Indian Black Tea Discrimination. IEEE SENSORS JOURNAL, 11 (12). pp. 3462-3468.
 
Relation http://ihbt.csircentral.net/1043/