Detection optimization of disbond in layered composites with varying thicknesses using an open-ended rectangular waveguide

Author

Ganchev, S. ; Qaddoumi, N. ; Zoughi, R.

Author_Institution

Appl. Microwave Nondestructive Testing Lab., Colorado State Univ., Fort Collins, CO, USA

fYear

1994

fDate

June 27 1994-July 1 1994

Firstpage

69

Lastpage

70

Abstract

The detection of air disbond in layered dielectric composite, which is an important practical issue in many industries, is studied both theoretically and experimentally. Sensitivity of disbond detection depends on certain parameters, like the frequency of operation, the distance between the sensor and the first dielectric layer, and the layered composite geometry (conductor backed or terminated by an infinite half-space of air). The impact of all these parameters is investigated theoretically and then verified experimentally.<>

Keywords

composite materials; dielectric measurement; dielectric thin films; electric sensing devices; fault location; microwave measurement; microwave reflectometry; nondestructive testing; optimisation; rectangular waveguides; sensitivity; aerospace industry; air disbond; construction industry; detection optimization; dielectric layer; frequency of operation; industrial measurements; infinite half-space; layered composite geometry; layered composites; layered dielectric composite; open-ended rectangular waveguide; rubber industry; Aerospace industry; Coatings; Conductors; Dielectric measurements; Frequency; Geometry; Rectangular waveguides; Reflection; Rubber industry; Waveguide theory;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Electromagnetic Measurements, 1994. Digest., 1994 Conference on

Conference_Location

Boulder, CO, USA

Print_ISBN

0-7803-1984-2

Type

conf

DOI

10.1109/CPEM.1994.333287

Filename

333287