Keywords

sensor array, ion selective electrodes, artificial neural networks, electronic tongue, environmental monitoring

Start Date

1-7-2008 12:00 AM

Description

The use of electronic tongues is proposed for two different environmentalmonitoring applications. This approach in chemical analysis consists of an array ofnonspecific sensors coupled with a multivariate calibration tool. In this case, the proposedarrays were formed by potentiometric sensors based on polymeric membranes (PVC) andthe subsequent cross-response processing was based on a multilayer artificial neuralnetwork (ANN) model. Special attention was paid in compensating temperature effects andresponse drifts in the sensors. In addition, in order to demonstrate the viability of theproposed systems for automated remote applications, the use of data transmission byradiofrequency has been tested.

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Jul 1st, 12:00 AM

New Sensor System for Environmental Monitoring: the Potentiometric Electronic Tongue

The use of electronic tongues is proposed for two different environmentalmonitoring applications. This approach in chemical analysis consists of an array ofnonspecific sensors coupled with a multivariate calibration tool. In this case, the proposedarrays were formed by potentiometric sensors based on polymeric membranes (PVC) andthe subsequent cross-response processing was based on a multilayer artificial neuralnetwork (ANN) model. Special attention was paid in compensating temperature effects andresponse drifts in the sensors. In addition, in order to demonstrate the viability of theproposed systems for automated remote applications, the use of data transmission byradiofrequency has been tested.