Direct measurement of injected charges in insulators submitted to strongly diverging fields using the pressure wave propagation method

Various theoretical models have been proposed to explain the behaviour of insulator-electrode interfaces in the case of strongly divergent electric fields. However, until recently a direct measurement of the charge transferred at these interfaces could not be performed and very indirect ways had to...

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Published in9th International Symposium on Electrets (ISE 9) Proceedings pp. 177 - 182
Main Authors Naz, O., Ditchi, T., Lewiner, J., Alquie, C.
Format Conference Proceeding
LanguageEnglish
Published IEEE 1996
Subjects
Cable insulation
Charge measurement
Current measurement
Dielectrics and electrical insulation
Electrodes
Geometry
Pressure measurement
Space charge
Stress
Wires
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Summary:Various theoretical models have been proposed to explain the behaviour of insulator-electrode interfaces in the case of strongly divergent electric fields. However, until recently a direct measurement of the charge transferred at these interfaces could not be performed and very indirect ways had to be used. In this paper we propose a structure which allows for direct measurement of this charge using the Pressure Wave Propagation method (PWP). We present evidence of charge transferred around small diameter wires, embedded in an insulator, submitted to an applied voltage.
ISBN:0780326954
9780780326958
DOI:10.1109/ISE.1996.578065