Synthesizing Electrically Equivalent Circuits for Use in Electrochemical Impedance Spectroscopy through Grammatical Evolution
| Autor: | Mark Žic, Tadej Tuma, Árpád Bűrmen, Vanja Subotić, Matevž Kunaver, Iztok Fajfar, Žiga Rojec |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
evolucijsko računanje
Computer science Bioengineering fuel cells TP1-1185 User input Evolutionary computation udc:621.39:543.42 Grammatical evolution elektrokemična impedančna spektroskopija Electronic engineering Chemical Engineering (miscellaneous) Spice simulator electrochemical impedance spectroscopy optimization evolutionary computation QD1-999 gorivne celice Process Chemistry and Technology Chemical technology Process (computing) Construct (python library) Dielectric spectroscopy Chemistry Equivalent circuit optimizacija |
| Zdroj: | Processes Processes, Vol 9, Iss 1859, p 1859 (2021) Volume 9 Issue 11 Processes, vol. 9, no. 11, 1859, 2021. |
| ISSN: | 2227-9717 |
| Popis: | Electrochemical impedance spectroscopy (EIS) is an important electrochemical technique that is used to detect changes and ongoing processes in a given material. The main challenge of EIS is interpreting the collected measurements, which can be performed in several ways. This article focuses on the electrical equivalent circuit (EEC) approach and uses grammatical evolution to automatically construct an EEC that produces an AC response that corresponds to one obtained by the measured electrochemical process(es). For fitting purposes, synthetic measurements and data from measurements in a realistic environment were used. In order to be able to faithfully fit realistic data from measurements, a new circuit element (ZARC) had to be implemented and integrated into the SPICE simulator, which was used for evaluating EECs. Not only is the presented approach able to automatically (i.e., with almost no user input) produce a more than satisfactory EEC for each of the datasets, but it also can also generate completely new EEC configurations. These new configurations may help researchers to find some new, previously overlooked ongoing electrochemical processes. |
| Databáze: | OpenAIRE |
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