Title of Paper:Metal Defects Sizing and Detection under Thick Coating Using Microwave NDT

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Journal:NDT & E International

Abstract:An experimental study to evaluate shapes and sizes of defect under thick coating by microwaves NDT is demonstrated. Specially fabricated thick fire protect coated steel panels with embedded defects are inspected using an X-band (8.2GHz-12.4GHz) open-ended rectangular waveguide. The fundamental idea behind using this probe is presented along with several experimental results to validate this method for defect detection under coating. The reflected signal related to the phase and magnitude of the reflection coefficient at the waveguide aperture is used to create images.

All the Authors: Libing Bai, W.L. Woo, Gui Yun Tian, Bin Gao,Hong Zhang

Correspondence Author:Bin Gao

Discipline:Engineering

Volume:60

Page Number:52–61

Translation or Not:no

Date of Publication:2013-07-21