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Sensors 2006, 6(11), 1679-1696; doi:10.3390/s6111679

A Portable Sensing System for Electronic Tongue Operations

Biomedical Microsystems, Tyndall National Institute, Prospect Row, Cork, Ireland
AMT Ireland, Food Science Building, University College Cork, Ireland
Author to whom correspondence should be addressed.
Received: 22 September 2006 / Accepted: 17 November 2006 / Published: 23 November 2006
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A portable, low cost sensing system is described which interfaces to an electronictongue sensor. The sensor used is a voltammetric sensor which monitors electrochemicalreactions that occur in solutions. The sensor is able to test a range of liquids with differentelectrochemical properties without any hardware adjustments to the system. The system canautomatically adjust for the change in solution properties by performing a routine whichuses an auto-ranging feature to determine a current-to-voltage conversion of the sensor databy using a binary search strategy. This eliminates the intervention of the user to modify thesystem each time a new solution is tested. The effectiveness of the calibration routine wastested by carrying out cyclic voltammetry in two different solutions, 0.1M sulfuric acidsolution and the phosphate buffered solution of pH3. The sensor system was able toaccurately acquire the sensor data for each solution. View Full-Text
Keywords: electronic tongue; voltammetry; working electrode; counter electrode; reference electronic tongue; voltammetry; working electrode; counter electrode; reference

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Twomey, K.; Truemper, A.; Murphy, K. A Portable Sensing System for Electronic Tongue Operations. Sensors 2006, 6, 1679-1696.

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