The effect of a polyharmonic structure of the perturbation signal on the results of harmonic analysis of the current of a first-order electrode

Measurements have been carried out on harmonic components of a current flowing through a model non-linear electric system simulating a first-order electrode reaction. Analysis of the harmonic components of the current has been carried out as a function of the frequency of the voltage perturbation signal. It has been shown that analysis of the harmonic components of current carried out with the assumption of a mono-harmonic voltage perturbation signal enables correct results to be obtained for the first three harmonic components of the current only. Obtaining the correct results for the fourth and fifth harmonic components of current requires taking into account the poly-harmonic nature of the voltage perturbation signal. (C) 1998 Elsevier Science Ltd. All rights reserved.