Fig. 3
From: Methodology for quantifying particle charge statistics in electric fields of gas insulations
The charging currents and charging currents normalized by the DMT contact area of ZnO particles are shown at two field strengths for both electrodes. (a) At 5 KV cm\(^{-1}\), the charging current magnitude generally increases with increasing particle diameter at both electrodes. (b) 10 KV cm\(^{-1}\) results in a wider charging current variability, while it does not change the influence of the particle diameter. (c) The charging current normalized by the theoretical contact area is shown at 5 KV cm\(^{-1}\). The power law fit shows a reasonable confidence interval for charging at both electrodes and it does not follow the shape of the theoretical contact area curve. (d) A slightly increasing normalized charging current is observed with increasing particle diameter at 10 KV cm\(^{-1}\).
