The detection sensitivity optimization of air disbond in layered dielectric composites, using an open-ended rectangular waveguide, is studied both theoretically and experimentally. The sensitivity of the disbond detection is strongly influenced by the proper choice of parameters such as the operating frequency and the layered composite geometry (conductor backed or terminated by an infinite half-space of air). The capability of optimizing the measurement system parameters to detect and estimate the thickness of a disbonded layer independent of some changes in the thickness of the dielectric coating is also demonstrated. The impact of the parameters influencing detection optimization is theoretically investigated and then experimentally verified.
S. I. Ganchev et al., "Microwave Detection Optimization of Disbond in Layered Dielectrics with Varying Thickness," IEEE Transactions on Instrumentation and Measurement, vol. 44, no. 2, pp. 326-328, Institute of Electrical and Electronics Engineers (IEEE), Apr 1995.
The definitive version is available at https://doi.org/10.1109/19.377843
Electrical and Computer Engineering
Keywords and Phrases
Estimation; Fourier Transforms; Frequencies; Geometry; Mathematical Models; Microwaves; Optimization; Rectangular Waveguides; Sensitivity Analysis; Thickness Measurement; Air Disbond; Detection Sensitivity Optimization; Dielectric Coating; Dielectric Composites; Disbond Detection; Microwave Detection; Dielectric Materials
International Standard Serial Number (ISSN)
Article - Journal
© 1995 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.