Measurement method of permittivity variations of loss liquid materials

Author

Barbosa, M. ; Lefeuvre, S.

Author_Institution

UFPB, Campina Grande, Brazil

Volume

1

fYear

1995

fDate

24-27 Jul 1995

Firstpage

131

Abstract

A new approach to permittivity measurement applied to loss materials is examined. The method proposed is based on the utilisation of a waveguide bridge and the precise knowledge of the field. Liquid dielectrics are the main focus, but the approach applies to other materials. A finite element method is used near to the dielectric. A modal decomposition is employed far from the source. Experimental measurement acquisition reveals a standing wave curve between two samples. The experimental results are compared to the theoretical curves

Keywords

dielectric liquids; dielectric loss measurement; finite element analysis; microwave measurement; permittivity measurement; waveguides; dielectric loss; experimental measurement; field; finite element method; liquid dielectrics; liquid materials; microwave applications; modal decomposition; permittivity measurement; standing wave curve; waveguide bridge; Bridge circuits; Dielectric liquids; Dielectric materials; Dielectric measurements; Finite element methods; Geometry; Loaded waveguides; Loss measurement; Permittivity measurement; Postal services;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Optoelectronics Conference, 1995. Proceedings., 1995 SBMO/IEEE MTT-S International

Conference_Location

Rio de Janeiro

Print_ISBN

0-7803-2674-1

Type

conf

DOI

10.1109/SBMOMO.1995.509610

Filename

509610