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    MID-IR LASER FOR GENERATION OF ULTRASOUND
    11.
    发明申请
    MID-IR LASER FOR GENERATION OF ULTRASOUND 有权
    用于生成超声波的中红外激光

    公开(公告)号：US20090285244A1

    公开(公告)日：2009-11-19

    申请号：US12120949

    申请日：2008-05-15

    申请人： Thomas E. Drake, JR. ,  Marc Dubois ,  Peter W. Lorraine ,  John B. Deaton, JR. ,  Robert Filkins

    发明人： Thomas E. Drake, JR. ,  Marc Dubois ,  Peter W. Lorraine ,  John B. Deaton, JR. ,  Robert Filkins

    IPC分类号： H01S3/30

    CPC分类号： G01N21/1702 ,  G01N2021/1706 ,  G01N2021/8472

    摘要： A compact high average power mid infrared range laser for ultrasound inspection. The laser comprises one of a Nd:YAG or Yb:YAG laser pumped by a diode at 808 nm to produce a 1 micron output beam. The 1 micron output beam is directed to an optical parametric oscillator where the beam wavelength is converted to 1.94 microns and conveyed to a mid infrared emission head. The emission head comprises one of a Ho:YAG or Ho:YLG laser optically coupled with a second optical parametric oscillator. The second optical parametric oscillator forms a generation output beam for creating ultrasonic displacements on a target. The generation output beam wavelength ranges from about 3 to about 4 microns, and can be 3.2 microns.

    摘要翻译： 用于超声检查的紧凑型高平均功率中红外范围激光。 激光器包括由二极管在808nm泵浦的Nd：YAG或Yb：YAG激光器中的一个，以产生1微米的输出光束。 1微米输出光束被引导到光参量振荡器，其中光束波长被转换为1.94微米并被传送到中红外发射头。 发射头包括与第二光学参量振荡器光学耦合的Ho：YAG或Ho：YLG激光器之一。 第二光参量振荡器形成用于在目标上产生超声波位移的生成输出光束。 产生输出光束波长范围为约3至约4微米，并且可以为3.2微米。

    System and method to reduce laser noise for improved interferometric laser ultrasound detection
    12.
    发明授权
    System and method to reduce laser noise for improved interferometric laser ultrasound detection 有权
    减少激光噪声的系统和方法，用于改进干涉激光超声检测

    公开(公告)号：US07474411B2

    公开(公告)日：2009-01-06

    申请号：US10703655

    申请日：2003-11-07

    申请人： Marc Dubois ,  Kent C. Burr ,  Thomas E. Drake, Jr. ,  Peter W. Lorraine

    发明人： Marc Dubois ,  Kent C. Burr ,  Thomas E. Drake, Jr. ,  Peter W. Lorraine

    IPC分类号： G01B9/02

    CPC分类号： G01H9/00

    摘要： The present invention provides an optical filter assembly that reduces the phase and amplitude noise of a detection laser used to detect ultrasonic displacements. The filtered detection laser is directed to the surface of a remote target. Ultrasonic displacements at the surface scatter the filtered detection laser. Collection optics then gather phase modulated light scattered by the surface and direct the phase modulated light to an optical processor to produce a signal representative of the ultrasonic displacements with an improved SNR. Additional processors may determine the structure of the remote target.

    摘要翻译： 本发明提供一种滤光器组件，其减少用于检测超声波位移的检测激光器的相位和幅度噪声。 滤波的检测激光器被引导到远程目标的表面。 表面上的超声波位移散射了滤波的检测激光。 收集光学器件然后收集由表面散射的相位调制光，并将相位调制光引导到光学处理器以产生表示具有改善的SNR的超声波位移的信号。 附加处理器可以确定远程目标的结构。

    Mid-IR laser for generation of ultrasound
    13.
    发明授权
    Mid-IR laser for generation of ultrasound 有权
    用于产生超声的中红外激光

    公开(公告)号：US08064488B2

    公开(公告)日：2011-11-22

    申请号：US12120949

    申请日：2008-05-15

    申请人： Thomas E. Drake, Jr. ,  Marc Dubois ,  Peter W. Lorraine ,  John B. Deaton, Jr. ,  Robert Filkins

    发明人： Thomas E. Drake, Jr. ,  Marc Dubois ,  Peter W. Lorraine ,  John B. Deaton, Jr. ,  Robert Filkins

    IPC分类号： H01S3/30

    CPC分类号： G01N21/1702 ,  G01N2021/1706 ,  G01N2021/8472

    摘要： A compact high average power mid infrared range laser for ultrasound inspection. The laser comprises one of a Nd:YAG or Yb:YAG laser pumped by a diode at 808 nm to produce a 1 micron output beam. The 1 micron output beam is directed to an optical parametric oscillator where the beam wavelength is converted to 1.94 microns and conveyed to a mid infrared emission head. The emission head comprises one of a Ho:YAG or Ho:YLG laser optically coupled with a second optical parametric oscillator. The second optical parametric oscillator forms a generation output beam for creating ultrasonic displacements on a target. The generation output beam wavelength ranges from about 3 to about 4 microns, and can be 3.2 microns.

    摘要翻译： 用于超声检查的紧凑型高平均功率中红外范围激光。 激光器包括由二极管在808nm泵浦的Nd：YAG或Yb：YAG激光器中的一个，以产生1微米的输出光束。 1微米输出光束被引导到光学参数振荡器，其中波束波长被转换为1.94微米并被传送到中红外发射头。 发射头包括与第二光学参量振荡器光学耦合的Ho：YAG或Ho：YLG激光器之一。 第二光参量振荡器形成用于在目标上产生超声波位移的生成输出光束。 产生输出光束波长范围为约3至约4微米，并且可以为3.2微米。

    Method and apparatus for generating mid-IR laser beam for ultrasound inspection
    15.
    发明授权
    Method and apparatus for generating mid-IR laser beam for ultrasound inspection 有权
    用于生成用于超声检查的中红外激光束的方法和装置

    公开(公告)号：US07821646B2

    公开(公告)日：2010-10-26

    申请号：US12120823

    申请日：2008-05-15

    申请人： Thomas E. Drake, Jr. ,  Peter W. Lorraine ,  John B. Deaton, Jr. ,  Marc Dubois ,  Robert Filkins

    发明人： Thomas E. Drake, Jr. ,  Peter W. Lorraine ,  John B. Deaton, Jr. ,  Marc Dubois ,  Robert Filkins

    IPC分类号： G01B9/02

    CPC分类号： G01N21/1702 ,  G01N21/8806 ,  G01N29/2418 ,  G01N2021/1706 ,  G01N2021/8472

    摘要： A method of ultrasonic testing comprising conditioning a radiation wave from a laser source by efficiently converting the radiation wave's wavelength to a mid-IR wavelength for enhanced ultrasonic testing of a composite. The method includes passing the radiation wave through a first optical frequency converter where the radiation wave is converted into a signal wave and an idler wave, where the idler wave is at a mid-IR wavelength. The method further includes directing the signal and idler waves to a second optical frequency converter where the signal wave wavelength is converted to a mid-IR wavelength which combines with the idler wave to form a generation wave. The generation wave is directed at a composite surface to be tested.

    摘要翻译： 一种超声波测试方法，包括通过有效地将辐射波的波长转换成中红外波长来调节来自激光源的辐射波，以增强复合材料的超声波测试。 该方法包括使辐射波通过第一光学频率转换器，其中辐射波被转换成信号波和惰轮，其中惰轮是中红外波长。 该方法还包括将信号和惰轮引导到第二光学频率转换器，其中信号波长被转换成与惰轮相结合以形成发电波的中红外波长。 发电波指向要测试的复合表面。

    METHOD AND APPARATUS FOR GENERATING MID-IR LASER FOR ULTRASOUND INSPECTION
    17.
    发明申请
    METHOD AND APPARATUS FOR GENERATING MID-IR LASER FOR ULTRASOUND INSPECTION 有权
    用于生成用于超声波检测的中红外激光的方法和装置

    公开(公告)号：US20090284751A1

    公开(公告)日：2009-11-19

    申请号：US12120823

    申请日：2008-05-15

    申请人： Thomas E. Drake, JR. ,  Peter W. Lorraine ,  John B. Deaton, JR. ,  Marc Dubois ,  Robert Filkins

    发明人： Thomas E. Drake, JR. ,  Peter W. Lorraine ,  John B. Deaton, JR. ,  Marc Dubois ,  Robert Filkins

    IPC分类号： G01B11/02 ,  G02F1/35

    CPC分类号： G01N21/1702 ,  G01N21/8806 ,  G01N29/2418 ,  G01N2021/1706 ,  G01N2021/8472

    摘要： A method of ultrasonic testing comprising conditioning a radiation wave from a laser source by efficiently converting the radiation wave's wavelength to a mid-IR wavelength for enhanced ultrasonic testing of a composite. The method includes passing the radiation wave through a first optical frequency converter where the radiation wave is converted into a signal wave and an idler wave, where the idler wave is at a mid-IR wavelength. The method further includes directing the signal and idler waves to a second optical frequency converter where the signal wave wavelength is converted to a mid-IR wavelength which combines with the idler wave to form a generation wave. The generation wave is directed at a composite surface to be tested.

    摘要翻译： 一种超声波测试方法，包括通过有效地将辐射波的波长转换成中红外波长来调节来自激光源的辐射波，以增强复合材料的超声波测试。 该方法包括使辐射波通过第一光学频率转换器，其中辐射波被转换成信号波和惰轮，其中惰轮是中红外波长。 该方法还包括将信号和惰轮引导到第二光学频率转换器，其中信号波长被转换成与惰轮相结合以形成发电波的中红外波长。 发电波指向要测试的复合表面。

    LASER ULTRASONIC MEASUREMENT SYSTEM WITH MOVABLE BEAM DELIVERY
    18.
    发明申请
    LASER ULTRASONIC MEASUREMENT SYSTEM WITH MOVABLE BEAM DELIVERY 审中-公开
    激光超声波测量系统，可移动光束传输

    公开(公告)号：US20130120758A1

    公开(公告)日：2013-05-16

    申请号：US13533565

    申请日：2012-06-26

    申请人： Marc Dubois ,  Thomas E. Drake

    发明人： Marc Dubois ,  Thomas E. Drake

    IPC分类号： G01B9/02

    CPC分类号： G01B9/02049 ,  G01B11/00 ,  G01B11/16 ,  G01B11/161 ,  G01B17/00 ,  G01N29/2418 ,  G01N29/265

    摘要： A laser ultrasonic measurement system includes a first and a second laser source configured to generate a first and a second laser beam, respectively. A movable mechanical link is arranged to transmit the first laser beam. The movable mechanical link is formed by a plurality of rigid sections interconnected by rotating joints. A robot is configured to support and control the movement of at least a section of the mechanical link to transmit the first laser beam to an object. An optical scanner is positioned proximate to the mechanical link. The optical scanner is configured to direct the first and second laser beams onto the object. An interferometer is optically coupled to the optical scanner. The interferometer is configured to receive reflected light from the object and in response generate an electrical signal. The first laser source is kinematically mounted in a housing assembly.

    摘要翻译： 激光超声波测量系统包括被配置为分别产生第一和第二激光束的第一和第二激光源。 可移动机械连杆布置成透射第一激光束。 可移动机械连杆由多个通过旋转接头互连的刚性部分形成。 机器人构造成支撑和控制机械连杆的至少一部分的运动，以将第一激光束传送到物体。 光学扫描器位于机械连杆附近。 光学扫描器被配置为将第一和第二激光束引导到物体上。 干涉仪光学耦合到光学扫描仪。 干涉仪被配置为从物体接收反射光并且响应于产生电信号。 第一激光源被运动地安装在壳体组件中。

    Laser ultrasonic measurement system with movable beam delivery
    19.
    发明授权
    Laser ultrasonic measurement system with movable beam delivery 失效
    激光超声波测量系统具有可移动光束传输

    公开(公告)号：US08243280B2

    公开(公告)日：2012-08-14

    申请号：US12464571

    申请日：2009-05-12

    申请人： Marc Dubois ,  Thomas E. Drake ,  Marvin Klein

    发明人： Marc Dubois ,  Thomas E. Drake ,  Marvin Klein

    IPC分类号： G01B11/02

    CPC分类号： G01B9/02049 ,  G01B11/00 ,  G01B11/16 ,  G01B11/161 ,  G01B17/00 ,  G01N29/2418 ,  G01N29/265

    摘要： A laser ultrasonic measurement system includes a first and a second laser source configured to generate a first and a second laser beam, respectively. A movable mechanical link is arranged to transmit the first laser beam. The movable mechanical link is formed by a plurality of rigid sections interconnected by rotating joints. A robot is configured to support and control the movement of at least a section of the mechanical link to transmit the first laser beam to an object. An optical scanner is positioned proximate to the mechanical link. The optical scanner is configured to direct the first and second laser beams onto the object. An interferometer is optically coupled to the optical scanner. The interferometer is configured to receive reflected light from the object and in response generate an electrical signal. The first laser source is kinematically mounted in a housing assembly.

    摘要翻译： 激光超声波测量系统包括被配置为分别产生第一和第二激光束的第一和第二激光源。 可移动机械连杆布置成透射第一激光束。 可移动机械连杆由多个通过旋转接头互连的刚性部分形成。 机器人构造成支撑和控制机械连杆的至少一部分的运动，以将第一激光束传送到物体。 光学扫描器位于机械连杆附近。 光学扫描器被配置为将第一和第二激光束引导到物体上。 干涉仪光学耦合到光学扫描仪。 干涉仪被配置为从物体接收反射光并且响应于产生电信号。 第一激光源被运动地安装在壳体组件中。