Laser-intensity modulation method (LIMM)-an analytical and numerical modification

Author

Das-Gupta, D.K. ; Hornsby, J.S.

Author_Institution

Sch. of Electron. Eng. Sci., Wales Univ., Bangor, UK

Volume

26

Issue

1

fYear

1991

fDate

2/1/1991 12:00:00 AM

Firstpage

63

Lastpage

68

Abstract

An analytical method that has been used with the laser intensity modulation technique for the determination of polarization and space-charge distributions in electrically stressed low-density polyethylene is described. A numerical method and data analysis are presented. In the analysis, a specific model of spatial distributions of space charge and polarization has been assumed that appears to provide reasonable agreement between the experimentally observed and the expected results

Keywords

charge measurement; dielectric polarisation; measurement by laser beam; organic insulating materials; polarimetry; polymers; LDPE; LIMM; analytical method; data analysis; determination of polarization; electrically stressed low-density polyethylene; laser intensity modulation method; laser intensity modulation technique; model of spatial distributions of space charge; numerical method; numerical modification; polarization spatial distribution model; space charge distribution determination; Amplifiers; Electrets; Frequency; Intensity modulation; Laser theory; Piezoelectric polarization; Polymers; Space charge; Temperature; Thermal force;

fLanguage

English

Journal_Title

Electrical Insulation, IEEE Transactions on

Publisher

ieee

ISSN

0018-9367

Type

jour

DOI

10.1109/14.68229

Filename

68229