EMAT weld inspection
    3.
    发明授权
    EMAT weld inspection 失效
    EMAT焊接检测

    公开(公告)号:US06896171B2

    公开(公告)日:2005-05-24

    申请号:US10621506

    申请日:2003-07-17

    IPC分类号: B23K31/12 G01N29/04 G01N29/24

    摘要: A method for inspecting welds between welded tubular ends includes arranging a series electromagnetic acoustic transducer (EMAT) assemblies in circumferential direction adjacent to an inner and/or outer surface of at least one of the welded tubular ends and inducing the EMAT assemblies to transmit sequentially or simultaneously acoustic shear wave signals towards the weld and to detect the shear waves reflected by and/or passing through the weld while the EMAT assemblies are maintained in a substantially fixed position relative to the weld such that at least a substantial part of the weld is scanned by the EMAT assemblies instantly after the weld is made.

    摘要翻译: 用于检查焊接的管状端部之间的焊缝的方法包括在邻近焊接的管状端部中的至少一个的内表面和/或外表面的周向方向上布置串联电磁声换能器(EMAT)组件,并且引导EMAT组件依次或 同时声波剪切波信号朝向焊缝并且检测由焊缝反射和/或通过焊缝的剪切波,同时EMAT组件相对于焊缝保持在基本上固定的位置,使得至少大部分焊缝被扫描 在焊接后立即由EMAT组件。