Pipeline Inspection Using Variable-Diameter Remote-Field Eddy Current Technology
    1.
    发明申请
    Pipeline Inspection Using Variable-Diameter Remote-Field Eddy Current Technology 有权
    使用可变直径远场涡流技术的管道检查

    公开(公告)号:US20080042646A1

    公开(公告)日:2008-02-21

    申请号:US11767267

    申请日:2007-06-22

    IPC分类号: G01N27/82

    CPC分类号: G01N27/82

    摘要: The present disclosure relates to a device and method for pipeline inspection, The inspection device may include an exciter coil capable of providing an alternating current magnetic field and producing eddy currents. A plurality of sensors may then be provided which are capable of sensing a magnetic field produced by the eddy currents and the sensors may be engaged with a sensor shoe. The sensors may then be capable of being positioned at a first distance D1 with respect to an inner pipe wall surface and capable of providing coupling to the magnetic field produced by the eddy currents. The sensor shoe may also be capable of retracting to a second distance D2, wherein D1

    摘要翻译: 本公开涉及一种用于管道检查的装置和方法。检查装置可以包括能够提供交流磁场并产生涡流的励磁线圈。 然后可以提供能够感测涡流产生的磁场的多个传感器,并且传感器可以与传感器靴接合。 然后,传感器能够相对于内管壁表面定位在第一距离D 1,并且能够提供与由涡流产生的磁场的耦合。 传感器靴还可以回缩到第二距离D 2,其中D 1 2。 传感器靴可以连接到传感器支撑臂,其中支撑臂可以可枢转地附接到固定轮毂和控制臂,然后控制臂可枢转地连接到从动轮毂。