Ultrasonic nondestructive evaluation (NDE) is widely used for detecting flaws in oil pipelines. The backscattering noise may attain peak values greater than the sought flaw pulse. For improving the signal-to-noise ratio (SNR) and extracting a flaw echo corrupted by noise, a resonance demodulation technique and a resonance filter are proposed. The impulse response of the resonance filter can be represented as a superposition of Gaussian echoes. The analysis results show that this approach is more effective in extracting the information of a small flaw during pipeline NDE. The amplitude envelope of the processed ultrasonic signal after envelope detection obtains a notable SNR enhancement.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Ultrasonic flaw detection during NDE of oil pipelines via a resonance filter


    Weitere Titelangaben:

    Ultraschall-Fehlernachweis bei der ZfP von Ölpipelines mittels Resonanzfilter


    Beteiligte:
    Wei, L. (Autor:in) / Pei-Wen, Q. (Autor:in) / Guang, Y. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2006


    Format / Umfang :

    6 Seiten, 6 Bilder, 8 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




    Rail ultrasonic flaw detection system and rail ultrasonic flaw detection method

    ZHANG HONGTAO / MING XUANHUI | Europäisches Patentamt | 2020

    Freier Zugriff

    Wall-climbing vehicle for ultrasonic flaw detection and ultrasonic flaw detection method

    WANG JIUXIN / LI WENLONG / SU YAOHENG et al. | Europäisches Patentamt | 2022

    Freier Zugriff