Parameter Estimation of Randles Model of Electronic Tongue Using System Identification

摘要

In this paper, the parameter estimation of Randles equivalent circuit model of electronic tongue has been performed. The system identification along with network synthesis is used for this purpose. The method is tested with standard solution of potassium ferricyanide at different concentration levels. Effects on parameters are observed with variation in working electrode at different solution concentration profiles. The current waveform data points are obtained in the experiment with electronic tongue as a result of voltage perturbation to it. These input-output data from the system are used for its identification. Validation of circuit parameters is done using simulation performed in Simulink.