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Design of a pulsed eddy current sensor for detection of defects in aircraft lap-joints

Sophian, A., Tian, G.Y., Taylor, D. and Rudlin, J. (2002) Design of a pulsed eddy current sensor for detection of defects in aircraft lap-joints. Sensors and Actuators A Physical, 101 (1-2). pp. 92-98. ISSN 0924-4247

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    Abstract

    This paper presents a new type of pulsed eddy current (PEC) sensor that has been designed for defect detection in aircraft lap-joint structures. The sensor employs a new excitation circuit that requires no additional signal amplification and the paper also reports compensation techniques that improve the sensing resolution and stability. A new hybrid feature of the peak value in time domain and the maximum frequency magnitude in frequency domain has been investigated. A test rig has been built and some results from aircraft samples are presented.

    Item Type: Article
    Additional Information: © 2002 Elsevier Science B.V. All rights reserved.
    Uncontrolled Keywords: Pulsed eddy current (PEC) sensor; Transient response; Magnetic sensor; Feature extraction; Digital compensation; Aircraft NDT
    Subjects: T Technology > TL Motor vehicles. Aeronautics. Astronautics
    Schools: School of Computing and Engineering
    School of Computing and Engineering > Computer Graphics, Imaging and Vision Research Group
    References:

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    Depositing User: Briony Heyhoe
    Date Deposited: 20 Jul 2007
    Last Modified: 06 Jan 2011 09:31
    URI: http://eprints.hud.ac.uk/id/eprint/302

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