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    Hollow core waveguide for laser generation of ultrasonic waves
    6.
    发明授权
    Hollow core waveguide for laser generation of ultrasonic waves 有权
    用于激光产生超声波的空心波导

    公开(公告)号：US07734133B2

    公开(公告)日：2010-06-08

    申请号：US12121559

    申请日：2008-05-15

    申请人： Marc Dubois ,  Thomas E. Drake, Jr. ,  Mark A. Osterkamp

    发明人： Marc Dubois ,  Thomas E. Drake, Jr. ,  Mark A. Osterkamp

    IPC分类号： G02B6/26 ,  G02B6/42 ,  G02B6/32 ,  G01N9/24 ,  G01N29/00 ,  G01H11/00 ,  G01N24/00 ,  G01N29/04

    CPC分类号： G02B6/4206 ,  B23K26/03 ,  B23K26/06 ,  B23K26/0884 ,  G01N29/2418 ,  G01N29/265

    摘要： A laser transmission system is used for inspecting workpieces. The system has a source of laser beams that is coupled to a first lens assembly. A first hollow core waveguide is operably coupled to the first lens assembly. An end of an optical fiber coupled to the first hollow core waveguide. A second hollow core waveguide is coupled to the other end of the optical fiber. A second lens assembly operably coupled to the second hollow core waveguide. The length of the hollow core waveguides range from about 5 to 100 times the focal lengths of the lens assemblies. A motion control system is operably coupled to the second hollow core waveguide and the second lens assembly for controllably displacing the second hollow core waveguide and the second lens assembly with respect to a workpiece.

    摘要翻译： 激光传输系统用于检查工件。 该系统具有耦合到第一透镜组件的激光束源。 第一中空芯波导可操作地耦合到第一透镜组件。 耦合到第一中空芯波导的光纤的端部。 第二中空芯波导耦合到光纤的另一端。 可操作地耦合到第二中空芯波导的第二透镜组件。 中空芯波导的长度为透镜组件的焦距的约5至100倍。 运动控制系统可操作地耦合到第二中空芯波导和第二透镜组件，用于相对于工件可控地移动第二中空芯波导和第二透镜组件。

    DEPTH MAPPING VISION SYSTEM WITH 2D OPTICAL PATTERN FOR ROBOTIC APPLICATIONS
    7.
    发明申请
    DEPTH MAPPING VISION SYSTEM WITH 2D OPTICAL PATTERN FOR ROBOTIC APPLICATIONS 审中-公开
    DEPTH MAPPING VISION SYSTEM with 2D OPTICAL PATTERN FOR ROBOTIC APPLICATIONS

    公开(公告)号：US20140081459A1

    公开(公告)日：2014-03-20

    申请号：US14032427

    申请日：2013-09-20

    申请人： Marc Dubois ,  Thomas E. Drake, JR.

    发明人： Marc Dubois ,  Thomas E. Drake, JR.

    IPC分类号： B25J9/16

    CPC分类号： B25J9/1697 ,  G05B2219/37555 ,  G05B2219/39451

    摘要： A depth mapping device equipped with a 2D optical pattern projection mounted on a tool attached to a robot may be used to measure distance between the tool and an object. Depth data generated by the depth mapping device can be used to generate an augmented-reality image to provide real-time information about the object position, orientation, or other measurements to an operator performing a industrial robotic process. Images also may be generated with a camera located on the robot. Real-time depth information may be used to prevent collision. Fast depth information acquisition may be used to modify robot position for better processing. Real-time data acquisition plus fast processing may provide augmented-reality images to operators for better robot programming. Location data of the industrial process on the object may be used to improve analysis of the industrial process data.

    摘要翻译： 配备有安装在附接到机器人的工具上的2D光学图案投影的深度测绘装置可以用于测量工具和物体之间的距离。 由深度测绘装置生成的深度数据可用于生成增强现实图像，以向执行工业机器人处理的操作者提供关于对象位置，方向或其它测量的实时信息。 也可以使用位于机器人上的相机来生成图像。 可以使用实时深度信息来防止碰撞。 可以使用快速深度信息获取来修改机器人位置以获得更好的处理。 实时数据采集加上快速处理可以为运营商提供增强现实图像以实现更好的机器人编程。 对象上工业过程的位置数据可用于改进对工业过程数据的分析。

    System and method to inspect components having non-parallel surfaces
    8.
    发明授权
    System and method to inspect components having non-parallel surfaces 有权
    检查具有不平行表面的部件的系统和方法

    公开(公告)号：US07369250B2

    公开(公告)日：2008-05-06

    申请号：US11089902

    申请日：2005-03-25

    申请人： Marc Dubois ,  Thomas E. Drake, Jr.

    发明人： Marc Dubois ,  Thomas E. Drake, Jr.

    IPC分类号： G01B11/02 ,  G01B9/02 ,  G01N21/00

    CPC分类号： G01N21/1717 ,  G01H9/00 ,  G01N29/2418 ,  G01N2291/0423 ,  G01N2291/0425 ,  G01N2291/044

    摘要： The present invention provides a method to detect and generate ultrasonic displacements at a remote target for ultrasonic inspection. This method involves generating an ultrasonic wave at a first location on an upper surface of the remote target. This ultrasonic wave is reflected from interior surfaces within the remote target wherein the reflected ultrasonic wave produces ultrasonic displacement at a second location on the upper surface of the remote target. A detection laser beam is generated and directed to the second location on the upper surface of the remote target. Here, the detection laser beam is scattered by the ultrasonic displacements to produce phase-modulated light. This phase-modulated light is collected and processed to obtain data representative of the ultrasonic surface displacements. Further, these ultrasonic displacements, when processed, will yield inspection information associated with the interior of the remote target.

    摘要翻译： 本发明提供一种在超声波检查的远程目标处检测和产生超声波位移的方法。 该方法涉及在远程目标的上表面上的第一位置处产生超声波。 该超声波从远程目标内的内表面反射，其中反射的超声波在远程目标的上表面上的第二位置处产生超声波位移。 生成检测激光束并将其引导到远程目标的上表面上的第二位置。 这里，检测激光束被超声波位移散射以产生相位调制光。 收集并处理该相位调制光以获得代表超声表面位移的数据。 此外，这些超声波位移在被处理时将产生与远程目标的内部相关联的检查信息。

    METHOD AND APPARATUS FOR THE INSPECTION OF SANDWICH STRUCTURES USING LASER-INDUCED RESONANT FREQUENCIES
    9.
    发明申请
    METHOD AND APPARATUS FOR THE INSPECTION OF SANDWICH STRUCTURES USING LASER-INDUCED RESONANT FREQUENCIES 审中-公开
    使用激光诱发谐波频率检测三维结构的方法和装置

    公开(公告)号：US20130088724A1

    公开(公告)日：2013-04-11

    申请号：US13649015

    申请日：2012-10-10

    申请人： Marc Dubois ,  Thomas E. Drake, JR.

    发明人： Marc Dubois ,  Thomas E. Drake, JR.

    IPC分类号： G01B9/02

    CPC分类号： G01H9/00 ,  G01N29/11 ,  G01N29/2418 ,  G01N29/348 ,  G01N29/4436 ,  G01N2291/0231

    摘要： A method for inspecting a sandwich structure may comprise determining a reference frequency, directing first and second laser beams onto the structure, collecting reflected light, processing it using an interferometer, acquiring a time-dependent signal for a predetermined duration greater than a period corresponding to the reference frequency, processing the time-dependent signal to produce a frequency-dependent signal, and comparing characteristics of the processed frequency-dependent signal to the reference frequency. A laser-ultrasonic apparatus configured to inspect sandwich structures may comprise first and second laser beams configured to generate acoustic energy in and illuminate a sandwich structure, respectively, an interferometer configured to receive reflected light and generate a time-dependent signal, detection electronics configured to process the time-dependent signal to produce a time-dependent electrical signal, and one or more processing units configured to convert the time-dependent electrical signal into a frequency-dependent signal and to compare characteristics thereof to characteristics of a reference frequency-dependent signal.

    摘要翻译： 用于检查夹层结构的方法可以包括确定参考频率，将第一和第二激光束引导到结构上，收集反射光，使用干涉仪处理它，获取大于相应于 参考频率，处理时间相关信号以产生频率相关信号，以及将经处理的频率相关信号的特性与参考频率进行比较。 被配置为检查夹层结构的激光超声波装置可以包括分别被配置为产生声能并分别照明夹层结构的第一和第二激光束，被配置为接收反射光并产生时间相关信号的干涉仪，检测电子器件被配置为 处理时间依赖信号以产生与时间有关的电信号，以及一个或多个处理单元，被配置为将时间相关电信号转换为频率相关信号，并将其特征与参考频率相关信号的特性进行比较 。

    Fiber-based mid-infrared generation laser for laser ultrasound inspection
    10.
    发明授权
    Fiber-based mid-infrared generation laser for laser ultrasound inspection 有权
    用于激光超声波检测的基于光纤的中红外发生激光

    公开(公告)号：US07800762B2

    公开(公告)日：2010-09-21

    申请号：US11524046

    申请日：2006-09-20

    申请人： John B. Deaton, Jr. ,  Marc Dubois ,  Kenneth R. Yawn ,  Jeffery E. Maestas ,  Thomas E. Drake, Jr.

    发明人： John B. Deaton, Jr. ,  Marc Dubois ,  Kenneth R. Yawn ,  Jeffery E. Maestas ,  Thomas E. Drake, Jr.

    IPC分类号： G01B11/02

    CPC分类号： G01N29/2418 ,  G01N2291/0231

    摘要： Embodiments of the present invention relate to a laser system and method for the optical generation of ultrasound at a remote target. This involves generating a pump laser beam with a diode-pumped fiber laser. The diode pumped fiber laser is fiber-coupled with an optical fiber, either passive or diode pumped, to a generation laser head. The generation laser head generates a generation laser beam from the pump laser beam and directs the generation laser beam to the surface of the remote target. The interaction between generation laser beam and the surface of the remote target results in ultrasonic displacements at the remote target. These ultrasonic displacements may be sampled in order to assess and inspect the remote target.

    摘要翻译： 本发明的实施例涉及一种用于在远程目标处产生超声波的激光系统和方法。 这涉及用二极管泵浦的光纤激光器产生泵浦激光束。 二极管泵浦光纤激光器与被泵浦或无源二极管的光纤耦合到一代激光头。 一代激光头从泵浦激光束产生一代激光束并将生成的激光束引导到远程靶的表面。 发射激光束和远程目标表面之间的相互作用导致远程目标的超声波位移。 可以对这些超声波位移进行采样，以评估和检查远程目标。