A Rayleigh-wave-based sensor has been developed to measure corrosion damage in aircraft. This sensor forms an important part of a corrosion monitoring system being developed for a major aircraft manufacturer. This system measures the corrosion rate at the location of its sensors, and through a model predicts the corrosion rates in nearby places on an aircraft into which no sensors can be placed. In order to calibrate this model, which yields corrosion rates rather than the accumulated effect, an absolute measure of the damage is required. In this paper the development of a surface wave sensor capable of measuring accumulated damage will be described in detail. This sensor allows the system to measure material loss due to corrosion regardless of the possible loss of historical corrosion rate data, and can provide, at any stage, a benchmark for the predictive model that would allow a good estimate of the accumulated corrosion damage in similar locations on an aircraft. This system may obviate the need for costly inspection of difficult-to-access places in aircraft, where presently the only way to check for corrosion is by periodic dismantling and reassembly.


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    Title :

    Development of a corrosion sensor for an aircraft vehicle health monitoring system


    Additional title:

    Entwicklung eines Korrosionssensors für ein Luftfahrzeug-Zustandsüberwachungssystem


    Contributors:
    Scott, D.A. (author) / Price, D.C. (author) / Edwards, G.C. (author) / Batten, A.B. (author) / Kolmeder, J. (author) / Muster, T.H. (author) / Corrigan, P. (author) / Cole, I.S. (author)


    Publication date :

    2009


    Size :

    8 Seiten, 9 Bilder, 1 Tabelle, 4 Quellen




    Type of media :

    Conference paper


    Type of material :

    Storage medium


    Language :

    English




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