Determination of Model Order of an Electrochemical System: A Case Study with Electronic Tongue

摘要

The paper presents a technique to determine the optimal model order of an electrochemical system with the help of system identification. The study has been performed for the case of different tea samples on a voltammetric electronic tongue. The transfer function model of the system with different combinations of number of poles and zeros are identified using the response data obtained from the electronic tongue. Based upon the normalized root mean square (NRMSE) criteria, the model fit for different model orders are compared and the optimal order of the system is determined.