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    Omnidirectional eddy current probe and inspection system
    1.
    发明授权
    Omnidirectional eddy current probe and inspection system 失效
    全向涡流探头和检测系统

    公开(公告)号：US07015690B2

    公开(公告)日：2006-03-21

    申请号：US10856381

    申请日：2004-05-27

    申请人： Changting Wang ,  Yuri Alexeyevich Plotnikov ,  Shridhar Champaknath Nath ,  William Stewart McKnight ,  Gigi Olive Gambrell

    发明人： Changting Wang ,  Yuri Alexeyevich Plotnikov ,  Shridhar Champaknath Nath ,  William Stewart McKnight ,  Gigi Olive Gambrell

    IPC分类号： G01N27/90 ,  G01N27/72

    CPC分类号： G01N27/902 ,  G01N27/9033 ,  G01N27/904

    摘要： An omnidirectional eddy current (EC) probe includes at least one EC channel having a first and a second sense coil that are offset in a first (x) and a second (y) direction and overlap in at least one of the directions (x,y). At least one drive coil is configured to generate a probing field for the EC channel in a vicinity of the sense coils. An omnidirectional EC inspection system includes an omnidirectional EC array probe (ECAP) that includes a number of EC channels and drive coils. Each EC channel includes first and second sense coils with opposite polarities. The drive coils have alternating polarities. Electrical connections perform differential sensing for respective EC channels. Corrective drive coils are disposed at respective ends of the EC channels and generate probing fields. An eddy current instrument is connected to the omnidirectional ECAP and receives differential sensing signals from the EC channels.

    摘要翻译： 全向涡流（EC）探针包括至少一个具有第一和第二感测线圈的EC通道，该第一和第二感测线圈在第一（x）和第二（y）方向上偏移并且在至少一个方向（x， y）。 至少一个驱动线圈被配置为在感测线圈附近产生用于EC通道的探测场。 全方位的EC检测系统包括一个包括多个EC通道和驱动线圈的全向EC阵列探针（ECAP）。 每个EC通道包括具有相反极性的第一和第二感测线圈。 驱动线圈具有交替极性。 电气连接对相应的EC通道执行差分感测。 纠正驱动线圈设置在EC通道的相应末端并产生探测场。 涡流仪器连接到全向ECAP，并从EC通道接收差分感测信号。

    Eddy current inspection system and method
    2.
    发明授权
    Eddy current inspection system and method 有权
    涡流检测系统及方法

    公开(公告)号：US08436608B2

    公开(公告)日：2013-05-07

    申请号：US12563403

    申请日：2009-09-21

    申请人： Haiyan Sun ,  Yuri Alexeyevich Plotnikov ,  Changting Wang ,  Shridhar Champaknath Nath ,  Aparna Chakrapani Sheila-Vadde

    发明人： Haiyan Sun ,  Yuri Alexeyevich Plotnikov ,  Changting Wang ,  Shridhar Champaknath Nath ,  Aparna Chakrapani Sheila-Vadde

    IPC分类号： G01N27/82 ,  G01R33/14 ,  G01R33/00

    CPC分类号： G01N27/904

    摘要： A multi-frequency eddy current (MFEC) inspection system is provided for inspection of case hardening depth on a part. The MFEC inspection system comprises a generator configured to generate one or more multi-frequency excitation signals and an eddy current probe configured to be disposed at one side of the part. The eddy current probe comprises one or more drivers and one or more pickup sensors. The one or more drivers are configured to receive the one or more multi-frequency excitation signals to induce eddy currents in the part. The one or more pickup sensors are configured to detect the induced eddy currents within a local area of the part to generate one or more multi-frequency response signals. The MFEC system further comprises a processor configured to receive the one or more multi-frequency response signals for processing to determine a case hardening depth of the local area of the part. A pulse eddy current inspection system and an eddy current inspection method are also presented.

    摘要翻译： 提供多频涡流（MFEC）检测系统，用于检查零件上的表面硬化深度。 MFEC检查系统包括被配置为产生一个或多个多频激励信号的发生器和被配置为设置在该部分的一侧的涡流探针。 涡流探头包括一个或多个驱动器和一个或多个拾取传感器。 一个或多个驱动器被配置为接收一个或多个多频率激励信号以在该部分中引起涡流。 一个或多个拾取传感器被配置为检测部件的局部区域内的感应涡流以产生一个或多个多频响应信号。 MFEC系统还包括处理器，其被配置为接收一个或多个多频响应信号以进行处理以确定部件的局部区域的壳体硬化深度。 还提出了脉冲涡流检测系统和涡流检测方法。

    EDDY CURRENT INSPECTION SYSTEM AND METHOD
    3.
    发明申请
    EDDY CURRENT INSPECTION SYSTEM AND METHOD 有权
    EDDY电流检测系统和方法

    公开(公告)号：US20110068784A1

    公开(公告)日：2011-03-24

    申请号：US12563403

    申请日：2009-09-21

    申请人： Haiyan Sun ,  Yuri Alexeyevich Plotnikov ,  Changting Wang ,  Shridhar Champaknath Nath ,  Aparna Chakrapani Sheila-Vadde

    发明人： Haiyan Sun ,  Yuri Alexeyevich Plotnikov ,  Changting Wang ,  Shridhar Champaknath Nath ,  Aparna Chakrapani Sheila-Vadde

    IPC分类号： G01R33/06 ,  G01R1/06 ,  G01R33/00

    CPC分类号： G01N27/904

    摘要： A multi-frequency eddy current (MFEC) inspection system is provided for inspection of case hardening depth on a part. The MFEC inspection system comprises a generator configured to generate one or more multi-frequency excitation signals and an eddy current probe configured to be disposed at one side of the part. The eddy current probe comprises one or more drivers and one or more pickup sensors. The one or more drivers are configured to receive the one or more multi-frequency excitation signals to induce eddy currents in the part. The one or more pickup sensors are configured to detect the induced eddy currents within a local area of the part to generate one or more multi-frequency response signals. The MFEC system further comprises a processor configured to receive the one or more multi-frequency response signals for processing to determine a case hardening depth of the local area of the part. A pulse eddy current inspection system and an eddy current inspection method are also presented.

    摘要翻译： 提供多频涡流（MFEC）检测系统，用于检查零件上的表面硬化深度。 MFEC检查系统包括被配置为产生一个或多个多频激励信号的发生器和被配置为设置在该部分的一侧的涡流探针。 涡流探头包括一个或多个驱动器和一个或多个拾取传感器。 一个或多个驱动器被配置为接收一个或多个多频率激励信号以在该部分中引起涡流。 一个或多个拾取传感器被配置为检测部件的局部区域内的感应涡流以产生一个或多个多频响应信号。 MFEC系统还包括处理器，其被配置为接收一个或多个多频响应信号以进行处理以确定部件的局部区域的壳体硬化深度。 还提出了脉冲涡流检测系统和涡流检测方法。

    Method for in-situ eddy current inspection of coated components in turbine engines
    6.
    发明授权
    Method for in-situ eddy current inspection of coated components in turbine engines 失效
    涡轮发动机涂层部件原位涡流检测方法

    公开(公告)号：US06707297B2

    公开(公告)日：2004-03-16

    申请号：US10122836

    申请日：2002-04-15

    申请人： Shridhar Champaknath Nath ,  Thomas James Batzinger ,  Curtis Wayne Rose ,  Yuri Alexeyevich Plotnikov ,  Kenneth Gordon Herd

    发明人： Shridhar Champaknath Nath ,  Thomas James Batzinger ,  Curtis Wayne Rose ,  Yuri Alexeyevich Plotnikov ,  Kenneth Gordon Herd

    IPC分类号： G01N2782

    CPC分类号： G01N27/9046

    摘要： A method for in-situ eddy current inspection of at least one coated component includes applying a drive pulse at a measurement position on an outer surface of the coated component, while the coated component is installed in an operational environment of the coated component. The coated component includes a base metal and a coating disposed on the base metal. The method further includes receiving a response signal from the coated component, comparing the response signal with a reference signal to obtain a compared signal, analyzing the compared signal for crack detection, and determining whether a crack near the measurement position has penetrated into the base metal, if the presence of the crack in the coating is indicated.

    摘要翻译： 用于至少一个涂覆部件的原位涡流检查的方法包括在涂覆部件的外表面上的测量位置处施加驱动脉冲，同时将涂覆部件安装在涂覆部件的操作环境中。 涂覆的部件包括贱金属和设置在母材上的涂层。 该方法还包括从涂覆部件接收响应信号，将响应信号与参考信号进行比较以获得比较信号，分析用于裂纹检测的比较信号，以及确定测量位置附近的裂纹是否穿透到基底金属 如果指示涂层中存在裂纹。

    Omnidirectional eddy current probes, array probes, and inspection systems
    9.
    发明授权
    Omnidirectional eddy current probes, array probes, and inspection systems 失效
    全向涡流探头，阵列探头和检测系统

    公开(公告)号：US06888347B2

    公开(公告)日：2005-05-03

    申请号：US10662681

    申请日：2003-09-12

    申请人： Thomas James Batzinger ,  Shridhar Champaknath Nath ,  Curtis Wayne Rose

    发明人： Thomas James Batzinger ,  Shridhar Champaknath Nath ,  Curtis Wayne Rose

    IPC分类号： G01N27/90 ,  G01N27/82

    CPC分类号： G01N27/9033

    摘要： An omnidirectional eddy current probe includes a number of sense coils arranged in a stack having a principal axis. At least two of the sense coils are rotationally skewed about the principal axis relative to one another. The sense coils are operatively connected to each other and a drive coil is also positioned in the stack. An impulse through the drive coil induces a magnetic influx through a conducting material specimen having a surface, thereby generating eddy currents on the surface. Secondary magnetic field generated from the eddy currents produces corresponding signals in the sense coils, and the signals are then analyzed for the possibility of surface flaw in the conducting material.

    摘要翻译： 全向涡流探针包括布置在具有主轴的堆叠中的多个感测线圈。 感测线圈中的至少两个相对于彼此围绕主轴旋转倾斜。 感测线圈可操作地彼此连接，并且驱动线圈也位于堆叠中。 通过驱动线圈的冲击通过具有表面的导电材料试样引起磁流入，从而在表面上产生涡流。 从涡流产生的二次磁场在感测线圈中产生相应的信号，然后分析信号中导电材料表面缺陷的可能性。