6533b870fe1ef96bd12d03be

RESEARCH PRODUCT

A noise analyzer for monitoring static electrification current

Dariusz ZmarzłyJózef Kędzia

subject

Spectrum analyzerEngineeringTransformer oilbusiness.industryAcousticsLiquid phaseConductivitySignal analyzerCondensed Matter PhysicsElectric chargeSurfaces Coatings and FilmsElectronic Optical and Magnetic Materialslaw.inventionElectrificationlawElectronic engineeringElectrical and Electronic EngineeringTransformerbusinessBiotechnology

description

Abstract This paper presents a static electrification current signal analyzer used for measuring and processing of the variable component of the changes in electrostatic charge that occur on a solid-body/liquid boundary interface. Due to high sensitivity and low uncertainty, the analyzer allows a precise evaluation of the phenomenon generated. The device operates in a spinning-disk system. The tests carried out indicate that it is possible to measure random components which depend, to a large extent, on hydrodynamic conditions and on the properties of the liquid phase. The device can be applied to the testing of transformer oils. It can be also used for measurements of other liquids having low conductivity and a high tendency toward electrical charging (ECT). The results of oil testing indicate a significant influence of the processes of aging on random components of the electrification current.

https://doi.org/10.1016/j.elstat.2005.01.001