LAMINATE MATERIAL TESTING METHODS AND SYSTEMS
    1.
    发明申请
    LAMINATE MATERIAL TESTING METHODS AND SYSTEMS 审中-公开
    层压材料测试方法和系统

    公开(公告)号:WO2006137854A2

    公开(公告)日:2006-12-28

    申请号:PCT/US2005/032713

    申请日:2005-09-14

    CPC classification number: G01N27/9033

    Abstract: Techniques for detecting defects in the proximity of a bolt hole of a laminate structure include inserting a generally cylindrical body portion into a bolt hole such that a first coil of wire will reside in a plane substantially parallel to a first electrically conductive layer of the laminate material. A magnetic field produced by the first coil of wire will produce appreciably large eddy-currents in the conductive layer in the plane of the first conductive layer, but damaged laminate materials will fail to produce similar eddy-currents. As the differences in eddy-currents between damages and undamaged laminate layers can be measured, damage to such laminate materials can be determined.

    Abstract translation: 用于检测层压结构的螺栓孔附近的缺陷的技术包括将大致圆柱形主体部分插入螺栓孔中,使得第一线圈线圈将位于基本上平行于层压材料的第一导电层的平面中 。 由第一线圈产生的磁场将在第一导电层的平面中的导电层中产生明显较大的涡流,但损坏的层压材料将不能产生类似的涡流。 由于可以测量损伤和未损坏的层压层之间的涡流的差异,因此可以确定对这种层压材料的损伤。

    INFRARED NDI DEVICE FOR SHALLOW DEFECT DETECTION
    2.
    发明申请
    INFRARED NDI DEVICE FOR SHALLOW DEFECT DETECTION 审中-公开
    用于防止缺陷检测的红外NDI设备

    公开(公告)号:WO2008063313A2

    公开(公告)日:2008-05-29

    申请号:PCT/US2007021753

    申请日:2007-10-10

    CPC classification number: G01N25/72

    Abstract: First and second thermal sensors measure the respective temperatures of portions of a surface of a structure such as an aircraft component. An alert signal is emitted if the temperatures of the surface portions are substantially different. An energy source causes heat flow within the structure. Subsurface flaws such as disbonded areas between composite layers and foreign materials obstruct heat flow within the structure and cause proximate surface portions to exhibit different temperatures. A non-alert signal may be emitted if the temperatures of proximate surface portions are essentially the same.

    Abstract translation: 第一和第二热传感器测量诸如飞行器部件的结构的表面的部分的相应温度。 如果表面部分的温度显着不同,则发出警报信号。 能量源导致结构内的热流。 诸如复合层和外来材料之间的剥离区域的表面缺陷阻碍了结构内的热流,并导致近似的表面部分呈现不同的温度。 如果接近表面部分的温度基本相同,则可能会发出非警报信号。

    INFRARED NDI DEVICE FOR SHALLOW DEFECT DETECTION
    3.
    发明申请
    INFRARED NDI DEVICE FOR SHALLOW DEFECT DETECTION 审中-公开
    红外NDI器件用于浅层缺陷检测

    公开(公告)号:WO2008063313B1

    公开(公告)日:2008-09-18

    申请号:PCT/US2007021753

    申请日:2007-10-10

    CPC classification number: G01N25/72

    Abstract: First and second thermal sensors measure the respective temperatures of portions of a surface of a structure such as an aircraft component. An alert signal is emitted if the temperatures of the surface portions are substantially different. An energy source causes heat flow within the structure. Subsurface flaws such as disbonded areas between composite layers and foreign materials obstruct heat flow within the structure and cause proximate surface portions to exhibit different temperatures. A non-alert signal may be emitted if the temperatures of proximate surface portions are essentially the same.

    Abstract translation: 第一和第二热传感器测量诸如飞机部件的结构的表面的各个部分的相应温度。 如果表面部分的温度基本不同,则发出警报信号。 能源引起结构内的热量流动。 诸如复合材料层和异物之间的剥离区域之类的表面缺陷阻碍了结构内的热流动并导致近表面部分呈现不同的温度。 如果邻近表面部分的温度基本相同,则可以发出非警报信号。

    LAMINATE MATERIAL TESTING METHODS AND SYSTEMS
    7.
    发明申请
    LAMINATE MATERIAL TESTING METHODS AND SYSTEMS 审中-公开
    层压材料测试方法和系统

    公开(公告)号:WO2006137854A3

    公开(公告)日:2007-02-22

    申请号:PCT/US2005032713

    申请日:2005-09-14

    CPC classification number: G01N27/9033

    Abstract: Techniques for detecting defects in the proximity of a bolt hole of a laminate structure include inserting a generally cylindrical body portion into a bolt hole such that a first coil of wire will reside in a plane substantially parallel to a first electrically conductive layer of the laminate material. A magnetic field produced by the first coil of wire will produce appreciably large eddy-currents in the conductive layer in the plane of the first conductive layer, but damaged laminate materials will fail to produce similar eddy-currents. As the differences in eddy-currents between damages and undamaged laminate layers can be measured, damage to such laminate materials can be determined.

    Abstract translation: 用于检测层压结构的螺栓孔附近的缺陷的技术包括将大致圆柱形主体部分插入螺栓孔中,使得第一线圈线圈将位于基本上平行于层压材料的第一导电层的平面中 。 由第一线圈产生的磁场将在第一导电层的平面中的导电层中产生明显较大的涡流,但损坏的层压材料将不能产生类似的涡流。 由于可以测量损伤和未损坏的层压层之间的涡流的差异,因此可以确定对这种层压材料的损伤。

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