Streaming electrification phenomena generated in the swinging system

The paper presents the results of experimental investigations on streaming electrification in a swinging cylinder system. Mineral transformer oil is used as a dielectric liquid in which the electrification process occurs. A shuttle system with a swinging cylinder is proposed to study the flow electrification phenomena. Some measurements and analyses are presented in the shuttle system. The analysis includes a determination of the influence of the frequency and amplitude of pendulum oscillation on the electrification signal. The power spectral densities, spectrograms and continuous wavelet transform were also used to assess the frequency and time-frequency characteristics of the measured signals.