The paper gives us things such as electrochemical measurements, fourier transform, excitation signal, and frequency. Inside this paper you can get things like electrochemical, measurements, frequency resolution, and electrolyte interface.
Many information like impedance measurements, electrode electrolyte interface, chronoamperometric signal, and signal are described in this paper. Here are taken from the paper:
We describe a novel technique for measuring electrochemical impedance, in which the electrode potential is ramped to a desired bias potential and a small potential step is applied to the working electrode after a short time delay. Fourier transform of the first derivative of the current signal thus obtained provides ac currents in the frequency domain, which allows the computation of impedances of the electrode/electrolyte interface in the whole frequency range. A home-built data acquisition system for these measurements and the results obtained therefrom were used for the measurements.
Also, this paper presents info things like measurement system, the current signal, data acquisition, and impedance.