The paper discussed pipeline inner-outer defects inspection and identification methods in pipeline magnetic flux leakage (MFL) inspection. Inspection vehicle got across defects in some velocity, bringing residual MFL, its signal frequency and peak value depend on defects size, defects shape, defects in inner or outer, inspected by Hall element sensors. The experimental results indicated that some pipeline defects can be found by former sensors and back sensors and its inner-outer position, other defects still can't be found. The MFL signals obtained depend not only on the detector and the defect but also on running conditions, such as the tester's velocity and stress, life-off and so on. Thus, more study need be finished.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Inspection and identification of inner-outer defects on oil-gas pipeline


    Weitere Titelangaben:

    Prüfung und Identifizierung von inneren-äußeren Fehlern an Öl-Gas-Pipelines


    Beteiligte:
    Yang, Lijian (Autor:in) / Liu, Gang (Autor:in) / Zhang, Guoguang (Autor:in) / Gao, Songwei (Autor:in)


    Erscheinungsdatum :

    2008


    Format / Umfang :

    4 Seiten, 7 Bilder, 6 Quellen


    Anmerkungen:

    (nicht paginiert)


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Datenträger


    Sprache :

    Englisch




    Variable-diameter petroleum pipeline inner wall inspection robot

    LI ZHIPENG / CAO XIANGHU / CAO SHIHUA | Europäisches Patentamt | 2021

    Freier Zugriff

    A New Inducer for Pipeline Inner Inspection based on ACFM

    Feng, Yijing / Zheng, Wenpei / Zhang, Laibin | British Library Conference Proceedings | 2016


    Inspection technologies for a wide range of pipeline defects

    Grimes, K. | British Library Conference Proceedings | 1992


    Inspection technologies for a wide range of pipeline defects

    Grimes, K. | British Library Conference Proceedings | 1992