Comparison of polarization distribution measurement by the LIMM and PWP methods

Author

Alquié, C. ; Tolra, C.L. ; Lewiner, J. ; Lang, Sidney B.

Author_Institution

Lab. d´´Electr. Generale, ESPCI, Paris, France

Volume

27

Issue

4

fYear

1992

fDate

8/1/1992 12:00:00 AM

Firstpage

751

Lastpage

757

Abstract

Two different methods of measurement of polarization distributions in piezoelectric materials, the laser intensity modulation method (LIMM) and the pressure wave propagation (PWP) method, are compared. The two techniques are described, and measurements made on different PVDF-based samples, one with a symmetric and the other one with an antisymmetric structure, are reported. Although the LIMM responds to diffusion of heat and the PWP method to the propagation of a pressure wave, the direct observation of the raw data gives similar information in both cases as far as the symmetry of the polarization distribution is concerned. The specific characteristics of each method are analyzed

Keywords

dielectric measurement; dielectric polarisation; measurement by laser beam; piezoelectric materials; LIMM; PVDF-based samples; PWP method; antisymmetric structure; laser intensity modulation method; piezoelectric materials; polarization distribution measurement; pressure wave; pressure wave propagation; symmetric structure; Acoustic propagation; Charge measurement; Chemical engineering; Current measurement; Insulation; Piezoelectric materials; Piezoelectric polarization; Pulse amplifiers; Pulse measurements; Pulse modulation;

fLanguage

English

Journal_Title

Electrical Insulation, IEEE Transactions on

Publisher

ieee

ISSN

0018-9367

Type

jour

DOI

10.1109/14.155792

Filename

155792