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    Eddy current sensor and tube testing tool having at least one such sensor
    3.
    发明授权
    Eddy current sensor and tube testing tool having at least one such sensor 失效
    具有至少一个这种传感器的涡流传感器和管测试工具

    公开(公告)号：US5914595A

    公开(公告)日：1999-06-22

    申请号：US913894

    申请日：1997-09-17

    申请人： Marc Piriou ,  Jacky Slazak

    发明人： Marc Piriou ,  Jacky Slazak

    IPC分类号： G01N27/90

    CPC分类号： G01N27/9013

    摘要： For the nondestructive testing of an electrically conductive part (T), an eddy current sensor (22a) is proposed having two transmitter windings (26) and one receiver winding (28). These three windings are arranged symmetrically with respect to a reference plane (P1) oriented perpendicular to the surface of the part (T). The receiver winding (28) is placed between the active portions (26a) of the emitter windings (26) and perpendicular to the plane (P1), whereas the transmitter windings (26) are substantially parallel to said plane. The coils and connections of the transmitter windings are such that the receiver winding is not traversed by any current in the absence of a fault. A tool for testing a tube (T), such as a steam generator tube, has two sensors oriented at right angles to one another.

    摘要翻译： PCT No.PCT / FR97 / 00133 Sec。 371日期1997年9月17日 102（e）1997年9月17日PCT PCT 1997年1月23日PCT公布。 公开号WO97 / 27476 日期1997年7月31日对于导电部件（T）的非破坏性测试，提出了具有两个发射器绕组（26）和一个接收器绕组（28）的涡流传感器（22a）。 这三个绕组相对于垂直于部件（T）的表面定向的参考平面（P1）对称布置。 接收器绕组（28）被放置在发射极绕组（26）的有效部分（26a）和垂直于平面（P1）之间，而发射器绕组（26）基本上平行于所述平面。 发射器绕组的线圈和连接使得接收器绕组在没有故障的情况下不被任何电流穿过。 用于测试管（T）的工具，例如蒸汽发生器管，具有彼此成直角定向的两个传感器。

    Photothermal Test Camera Provided With An Optical Device For Extending A Laser Beam Section
    4.
    发明申请
    Photothermal Test Camera Provided With An Optical Device For Extending A Laser Beam Section 审中-公开
    具有用于扩展激光束部分的光学装置的光热测试相机

    公开(公告)号：US20080212072A1

    公开(公告)日：2008-09-04

    申请号：US11912917

    申请日：2006-03-30

    申请人： Marc Piriou ,  Laurent Legrandjacques

    发明人： Marc Piriou ,  Laurent Legrandjacques

    IPC分类号： G01J3/00

    CPC分类号： G01N25/72

    摘要： The inventive photothermal test camera (16) is provided with a laser beam (4) shaping system (22) comprising a device (40) for extending the laser beam section in such a way that a heating area (2) extended in a direction (D) is formed on the surface of a testable piece (1), an array (8) of infrared sensors (10) for detecting a infrared radiation transmitted by a detection area (3) on the surface (1a) of the piece (1) with respect to the heating area (2) and a unit (46) for processing signals transmitted by the infrared sensors (10) in such a way that a thermographic image of the piece (1) surface (1a) is produced by scanning said surface (1a) with the aid of the heating area (2). An extending device (40) is embodied in the form of an optical device. Said invention can be used for non-destructive testing.

    摘要翻译： 本发明的光热测试相机（16）设置有激光束（4）整形系统（22），该激光束（4）成形系统（22）包括用于使激光束部分延伸的装置（40），使得加热区域（2） D）形成在可测试件（1）的表面上，红外传感器（10）的阵列（8），用于检测由片的表面（1a）上的检测区域（3）透射的红外辐射（ 1）相对于加热区域（2）和用于处理由红外传感器（10）传输的信号的单元（46），使得片（1）表面（1a）的热成像图像由 借助于加热区域（2）扫描所述表面（1a）。 延伸装置（40）以光学装置的形式实施。 所述发明可用于非破坏性试验。

    Eddy current probe having four active elements arranged in a quadrilateral
    5.
    发明授权
    Eddy current probe having four active elements arranged in a quadrilateral 失效
    涡流探头具有四边形排列的四个有源元件

    公开(公告)号：US6018242A

    公开(公告)日：2000-01-25

    申请号：US996553

    申请日：1997-12-23

    申请人： Marc Piriou ,  Jacky Slazak

    发明人： Marc Piriou ,  Jacky Slazak

    IPC分类号： G01N27/90 ,  G01R33/12 ,  G01N27/72

    CPC分类号： G01N27/9033 ,  G01N27/904

    摘要： An eddy current probe for the nondestructive testing of electrically conductive material parts comprises four identical active elements (10a, 10b, 10c, 10d), at lease in pairs, whose centers are arranged in accordance with a square or a quadrilateral, whose diagonals intersect at right angles and have an intersection point located in the center of one of them. The major axes (18a, 18b, 18c, 18d) of said elements are oriented perpendicular to the plane of the square or intersect at the same point on the normal to the center of the square. The active elements are generally windings. Preferably, opposite windings (10a, 10c and 10b, 10d) of the square are connected pairwise in series, so as to produce magnetic fields, which are summated according to the diagonals of the square and the two pairs are connected to one another according to a differential arrangement or circuit.

    摘要翻译： 用于导电材料部件的非破坏性测试的涡流探针包括四个相同的有源元件（10a，10b，10c，10d），它们的成对中心按照正方形或四边形排列，其对角线相交于 直角，并有一个交叉点位于其中一个的中心。 所述元件的长轴（18a，18b，18c，18d）垂直于正方形的平面定向，或者与正方形中心的法线相同点相交。 有源元件通常是绕组。 优选地，正方形的相对的绕组（10a，10c和10b，10d）成对地串联连接，以产生根据正方形的对角线相加的磁场，并且根据 差分布置或电路。

    Photothermal Inspection Camera Having an Offset Adjusting Device
    6.
    发明申请
    Photothermal Inspection Camera Having an Offset Adjusting Device 审中-公开
    具有偏移调整装置的光热检测相机

    公开(公告)号：US20080185520A1

    公开(公告)日：2008-08-07

    申请号：US11912923

    申请日：2006-03-27

    申请人： Marc Piriou ,  Laurent Legrandjacques

    发明人： Marc Piriou ,  Laurent Legrandjacques

    IPC分类号： H01L25/00

    CPC分类号： G01N25/72

    摘要： This photothermal examination camera (16) comprises: a system (22) for shaping a laser beam (4), which includes a device (40) for elongating the cross section of the beam in order to form, on a surface of a part (1) to be examined, an elongate heating zone along a direction; a matrix (8) of infrared detectors for detecting infrared radiation emitted by a detection zone on the surface (1a) of the part (1) relative to the heating zone; and a signal processing unit (46) for processing the signals delivered by the infrared detectors in order to construct a thermographic image of the surface (1a) of the part (1) by scanning the surface (1a) with the heating zone. The camera includes a system for mechanically adjusting an offset between the elongate heating zone and the detection zone.Application to the non-destructive inspection of parts.

    摘要翻译： 该光热检测照相机（16）包括：用于成形激光束（4）的系统（22），其包括用于延伸光束的横截面以在表面上形成的装置（40） 1）待检查，沿着方向的细长加热区; 红外检测器的矩阵（8），用于检测由所述部分（1）相对于所述加热区域的表面（1a）上的检测区域发射的红外辐射; 以及信号处理单元（46），用于处理由红外线检测器传送的信号，以便通过用加热区扫描表面（1a）来构成部分（1）的表面（1a）的热成像图像。 相机包括用于机械地调节细长加热区和检测区之间的偏移的系统。 应用于零件的无损检测。