Article Dans Une Revue Journal of Electrostatics Année : 2025

PWP measurement of charge distribution in dielectric and conductive liquids under DC electric field

Résumé

All liquids exhibit non-zero electrical conductivity, revealing the presence of electric charges. Though often considered uniformly distributed, these charges are influenced by interfaces (electrical double layer) or external electric fields. Their local accumulation can affect the performance of power equipment. Few precise methods exist to measure charge distribution in liquids. The PPRIME Institute has been adapting solid-state techniques, such as the Pressure Wave Propagation (PWP) method, for use in liquids. These have enabled the observation of how charges spatially and temporally reorganize under a DC electric field in dielectric and conductive liquids.

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hal-05419004 , version 1 (16-12-2025)

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Valentin Berry, Paul Leblanc, S. Hole, Thierry Paillat. PWP measurement of charge distribution in dielectric and conductive liquids under DC electric field. Journal of Electrostatics, 2025, 138, pp.104182. ⟨10.1016/j.elstat.2025.104182⟩. ⟨hal-05419004⟩
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