The application of Gabor transformation in the harmonic analysis of corrosion processes

Abstract

A new method of spectral analysis has been proposed for non‐stationary harmonic analysis of corrosion processes. The current of a model circuit has been considered which would simulate a first‐order electrode reaction proceeding in conditions of a linearly changing electrode potential with a superimposed sinusoid signal. It has been shown that the Fourier transformation approach does not reflect the amplitude changes of harmonic components as a function of constant potential. In addition, it has been shown mathematically that application of Gabor transformation in spectral analysis is a means of obtaining the correct frequency components. The Gabor transform correctly reflects amplitude changes of harmonic components as a function of potential. Digital analysis of current changes by Gabor transformation unequivocally confirmed the usability of this method for harmonic analysis of corrosion processes.

Citation

Darowicki, K. and Krakowiak, A. (2003), "The application of Gabor transformation in the harmonic analysis of corrosion processes", Anti-Corrosion Methods and Materials, Vol. 50 No. 3, pp. 193-200. https://doi.org/10.1108/00035590310471769