A New Algorithm Design for the Real-time Electrochemical Impedance Monitoring System

Abstract

:It is generally known that electrochemical impedance spectroscopy is a powerful technique and its real-time application has been demanded for prompt observations on instantaneous electrochemical changes. Nevertheless, long measurement time and laborious analysis procedures have hindered development of it. Solving the problems, here I report of a new algorithm design for development of a real-time electrochemical impedance monitoring system, which potentially provides a guideline in developing monitoring systems of electric vehicles batteries and other electrochemical power plants. The significant progress in this report is employment of the parallel processing protocol which connects independent sub functions to successfully operate with avoiding mutual interruptions. Therefore, all the processes required to monitor electrochemical impedance changes in realtime are properly operated. To realize the conceptual scheme, a Labview program was coded with sub functions units which conduct their processes individually and only data are transferred between them through the parallel pipelines. Finally, measured impedance spectra and analysis results are displayed, which are synchronized according to the time of change.

Electrochemical Impedance Method to Measure the Potential of the Outer Helmholtz Plane

“…All the operations are automatically carried out by a Labview program which is coded with the algorithm published before. 31 Electrochemical impedance data are obtained by the following procedure using Matlab. Briefly, currents and potentials recorded in the time domain are differentiated, and Fourier-transformed to give out I(ω) and E(ω) in the frequency domain.…”