Microwave Detection of Corrosion under Paint and Composite Laminate Coatings
Microwave and millimeter wave nondestructive methods using open-ended sensors have shown great potential for detecting minute thickness variations in laminate structures, in particular those backed by a conducting plate. Similarly, slight variations in the composition of dielectric materials may also be detected using a set of optimal parameters which include the standoff distance and the frequency of operation. In this paper the potential of using an open-ended rectangular waveguide for detecting the presence of rust under common paint and composite laminate coatings will be demonstrated. An experimental scanned image of a steel specimen with an area of induced corrosion will also be shown.
N. N. Qaddoumi and R. Zoughi, "Microwave Detection of Corrosion under Paint and Composite Laminate Coatings," Proceedings of Nondestructive Evaluation of Aging Aircraft, Airports, and Aerospace Hardware (1996, Scottsdale, AZ), vol. 2945, pp. 346-352, SPIE--The International Society for Optical Engineering, Dec 1996.
The definitive version is available at http://dx.doi.org/10.1117/12.259109
Nondestructive Evaluation of Aging Aircraft, Airports, and Aerospace Hardware (1996: Dec. 3-5, Scottsdale, AZ)
Electrical and Computer Engineering
Keywords and Phrases
Microwave Detection; Applications; Coatings; Corrosion; Dielectric Materials; Microwaves; Nondestructive Examination; Optical Devices; Paint; Laminated Composites
International Standard Book Number (ISBN)
International Standard Serial Number (ISSN)
Article - Conference proceedings
© 1996 SPIE--The International Society for Optical Engineering, All rights reserved.