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    PROBE FOR DETECTING MAGNETIC PROPERTIES OF MATERIALS
    2.
    发明公开
    PROBE FOR DETECTING MAGNETIC PROPERTIES OF MATERIALS 有权
    Sonde zur Detektion von magnetischen Materialeigenschaften

    公开(公告)号：EP2267471A1

    公开(公告)日：2010-12-29

    申请号：EP10180206.4

    申请日：2006-04-28

    申请人： University College London ,  University of Houston

    发明人： Hattersley, Simon Richard ,  Pankhurst, Quentin Andrew ,  Brazdeikis, Audrius

    IPC分类号： G01R33/035 ,  G01R33/12

    CPC分类号： G01R33/1215

    摘要： Apparatus for determining magnetic properties of materials comprises a portable probe 1, an equipment trolley 2 holding cryogenics and electronics and connecting cables 3.
    The probe 1 comprises a drive coil 4 and a correction coil 5, the drive coil 4 being disposed symmetrically with respect to an inner second-order gradiometer sensor coil 8.
    Electrical connectors in the form of 2-metre long Belden 1192A microphone cables 3 are used to connect the apparatus on the equipment trolley 2 to the drive coil 4, the correction coil 5 and the sensor coil 8.
    The drive coil 4 is driven so as to generate a sinusoidally varying magnetic field.
    The electronics comprise a flux-locked loop 9, a SQUID controller 10, a data acquisition module 11, which captures and processes the signals and a computer 12.
    A liquid-nitrogen dewar 13 is supported on the equipment trolley 2 and houses a sensitive SQUID detector 14 and a transfer coil 15 made from copper.
    Possible applications of the apparatus include an intra-operative tool for sentinel lymph node detection in the treatment of breast cancer, and a non-destructive evaluation tool for detecting voids and defects in aluminium and applications in the aeronautics industry.

    摘要翻译： 用于确定材料的磁特性的装置包括便携式探头1，容纳低温物质的电子设备和连接电缆3的设备手推车2.探针1包括驱动线圈4和校正线圈5，驱动线圈4相对于 内部二阶梯度传感器线圈8.以2米长的Belden 1192A麦克风电缆3的形式的电连接器用于将设备手推车2上的装置连接到驱动线圈4，校正线圈5和传感器线圈 驱动线圈4被驱动以产生正弦变化的磁场。 电子装置包括一个磁通锁定环9，一个SQUID控制器10，一个捕捉和处理这些信号的数据采集模块11以及一台计算机12.液氮杜瓦13被支撑在设备手推车2上，并容纳敏感的SQUID 检测器14和由铜制成的传输线圈15。 该装置的可能应用包括用于乳腺癌治疗中的前哨淋巴结检测的手术工具，以及用于检测铝中的空隙和缺陷以及在航空工业中的应用的非破坏性评估工具。