Development of an algorithm for automatic analysis of the impedance spectrum based on a measurement model

Kiyoshi Kobayashi, Tohru S. Suzuki

研究成果: Article査読

3 被引用数 (Scopus)

抄録

A new algorithm for the automatic estimation of an equivalent circuit and the subsequent parameter optimization is developed by combining the data-mining concept and complex least-squares method. In this algorithm, the program generates an initial equivalent-circuit model based on the sampling data and then attempts to optimize the parameters. The basic hypothesis is that the measured impedance spectrum can be reproduced by the sum of the partial-impedance spectra presented by the resistor, inductor, resistor connected in parallel to a capacitor, and resistor connected in parallel to an inductor. The adequacy of the model is determined by using a simple artificial-intelligence function, which is applied to the output function of the Levenberg-Marquardt module. From the iteration of model modifications, the program finds an adequate equivalent-circuit model without any user input to the equivalent-circuit model.

本文言語English
論文番号034004
ジャーナルjournal of the physical society of japan
87
3
DOI
出版ステータスPublished - 2018
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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