Design of a discriminating taste sensor using mutual information

A device closely mimicking the mammalian tongue is the electronic tongue or the taste sensor. It is composed of several kinds of lipid or polymer membrane for transforming information of a taste substance into an electric signal. In order to discriminate the tastes in a mixture, the mutual informati...

Full description

Saved in:
Bibliographic Details
Published in:Sensors and actuators. B, Chemical Chemical, 2006-11, Vol.119 (1), p.215-219
Main Author: Krishna Kumar, P.T.
Format: Article
Language:English
Subjects:
Correlation matrix
Determinant inequalities
Mutual information
Suppression of taste
Taste sensor
Upper and lower bounds
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A device closely mimicking the mammalian tongue is the electronic tongue or the taste sensor. It is composed of several kinds of lipid or polymer membrane for transforming information of a taste substance into an electric signal. In order to discriminate the tastes in a mixture, the mutual information has to be maximized by maximizing the determinant of the covariance matrix. We have developed a novel technique called the technique of determinant inequalities to maximize the mutual information by obtaining the upper and lower bounds of the correlated elements of the covariance matrix and applied it to an experimental taste sensor to demonstrate how certain tastes can be selectively suppressed.
ISSN:0925-4005
1873-3077
DOI:10.1016/j.snb.2005.12.012