Title :
Space charge and polarization profiles determination in thin polymer insulators by FLIMM
Author :
Marty-Dessus, D. ; Berquez, L. ; Mousseigne, M. ; Biellmann, C. ; Franceschi, J.L.
Author_Institution :
Lab. de Genie Electr., Univ. Paul Sabatier, Toulouse, France
Abstract :
In this work, the Focused Laser-Intensity Modulation Method (FLIMM) is used as a technique for space charge and polarization profiles determination in thin (up to 100 μm) polymer layers. This well-known technique is here applied to the study of an electrode-charged polyethylene (PE) and a corona-poled Poly(vinylidene Fluoride) (PVDF) sample. The experimental set-up is first described, and theoretical aspects of LIMM fundamentals are reminded. Then, difficulties encountered during LIMM pyroelectric current deconvolution are discussed, and space charge and polarization profiles are shown
Keywords :
dielectric polarisation; insulation testing; measurement by laser beam; polymer films; polymer insulators; space charge; 100 mum; LIMM pyroelectric current deconvolution; corona-poled polyvinylidene fluoride; electrode-charged polyethylene; focused laser-intensity modulation method; polarization profiles; polymer layers; space charge; thin polymer insulators; up to 100 μm; Deconvolution; Electrodes; Equations; Frequency; Laser beams; Plastic insulation; Polarization; Polymers; Pyroelectricity; Space charge;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 2000 Annual Report Conference on
Conference_Location :
Victoria, BC
Print_ISBN :
0-7803-6413-9
DOI :
10.1109/CEIDP.2000.885242
