Comparison of near-field millimeter wave probes for detecting corrosion pit under paint

Mohammad T. Ghasr, Sergey N. Kharkovsky, Reza Zoughi, Russell Austin

    Research output: Chapter in Book / Conference PaperConference Paper

    Abstract

    Corrosion pitting detection is a critical issue in the maintenance of aircraft. Near-field microwave nondestructive techniques have been successfully used for detection of corrosion under paint. In this paper a comparison between several different millimeter wave probes is made for the detection and evaluation of corrosion precursor pitting under paint at Ka-band and V-band. Since the pittings investigated here are very small in size, spatial resolution and sensitivity of the probes are critical issues. It is shown that modified open-ended rectangular probes namely, tapered waveguide and dielectric slab-loaded waveguide probes provide high resolution and sensitivity for the detection and evaluation of very small pittings under paint.
    Original languageEnglish
    Title of host publicationProceedings of the 21st IEEE Instrumentation and Measurement Technology Conference, 18-20 May 2004. IMTC 04. Vol. 3
    PublisherInstitute of Electrical and Electronics Engineers
    Number of pages5
    ISBN (Print)078038248X
    Publication statusPublished - 2004
    EventIEEE Instrumentation and Measurement Technology Conference -
    Duration: 16 May 2005 → …

    Conference

    ConferenceIEEE Instrumentation and Measurement Technology Conference
    Period16/05/05 → …

    Keywords

    • pitting
    • corrosion
    • paint
    • aircraft
    • aluminium
    • millimetre wave imaging
    • dielectric waveguides
    • nondestructive examination

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