Title

Microwave Detection of Corrosion under Paint and Composite Laminate Coatings

Abstract

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.

Meeting Name

Nondestructive Evaluation of Aging Aircraft, Airports, and Aerospace Hardware (1996: Dec. 3-5, Scottsdale, AZ)

Department(s)

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)

0819423491; 9780819423498

International Standard Serial Number (ISSN)

0277-786X

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1996 SPIE--The International Society for Optical Engineering, All rights reserved.

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