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AN-EIS-005

Electrochemical Impedance Spectroscopy (EIS) Part 5 – Parameter Estimation


Summary

In the application note AN-EIS-004 on equivalent circuit models, an overview of the different circuit elements that are used to build an equivalent circuit model was given. After identifying a suitable model for the system under investigation, the next step in the data analysis is estimation of the model parameters. This is done by the non-linear regression of the model to the data. Most impedance systems come with a data-fitting program. In this application note, the way NOVA is uses to fit the data is shown.

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// Batteries, fuel cells// Electronic components, semiconductors// Reference standards// Solar cells// Cement, gypsum, plaster// Fuels – fossil