Parameter Extraction for Impedance Spectra

Conference: Sensoren und Messsysteme 2010 - 15. ITG/GMA-Fachtagung
05/18/2010 - 05/19/2010 at Nürnberg

Proceedings: Sensoren und Messsysteme 2010

Pages: 4Language: englishTyp: PDF

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Büschel, P.; Kanoun, O. (Technische Universität Chemnitz, Chemnitz, Germany)

The use of the Impedance Spectroscopy (IS) is well established in different fields of science. Beside the sometimes challenging task of the measurement process itself the interpretation of the gathered data is demanding and requires good modeling as well as adequate parameter extraction methods. In this paper the process of extracting impedance model parameters with a stochastic method called Particle Filter (PF) is described. Stochastic methods provide advantages over deterministic methods. The most salient one is their robustness against being trapped into local minima which is very important for complex nonlinear impedance models.