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    Method to characterize material using mathematical propagation models and ultrasonic signal
    1.
    发明申请
    Method to characterize material using mathematical propagation models and ultrasonic signal 有权
    使用数学传播模型和超声波信号来表征材料的方法

    公开(公告)号：US20050102109A1

    公开(公告)日：2005-05-12

    申请号：US10975560

    申请日：2004-10-28

    申请人： Marc Dubois ,  Peter Lorraine ,  Robert Filkins

    发明人： Marc Dubois ,  Peter Lorraine ,  Robert Filkins

    IPC分类号： G01N29/24 ,  G01N29/44 ,  G01N29/48 ,  G01B5/28

    CPC分类号： G01N29/48 ,  G01N29/0645 ,  G01N29/2418 ,  G01N29/4418

    摘要： The invention is directed to a system and method for detecting defects in a manufactured object. These defects may include flaws, delaminations, voids, fractures, fissures, or cracks, among others. The system utilizes an ultrasound measurement system, a signal analyzer and an expected result. The signal analyzer compares the signal from the measurement system to the expected result. The analysis may detect a defect or measure an attribute of the manufactured object. Further, the analysis may be displayed or represented. In addition, the expected result may be generated from a model such as a wave propagation model. One embodiment of the invention is a laser ultrasound detection system in which a laser is used to generate an ultrasonic signal. The signal analyzer compares the measured ultrasonic signal to an expected result. This expected result is generated from a wave propagation model. The analysis is then displayed on a monitor.

    摘要翻译： 本发明涉及一种用于检测制造对象中的缺陷的系统和方法。 这些缺陷可能包括缺陷，分层，空隙，裂缝，裂缝或裂纹等。 该系统利用超声测量系统，信号分析仪和预期结果。 信号分析仪将来自测量系统的信号与预期结果进行比较。 分析可以检测缺陷或测量所制造的对象的属性。 此外，可以显示或表示分析。 此外，可以从诸如波传播模型的模型生成预期结果。 本发明的一个实施例是激光超声波检测系统，其中使用激光来产生超声波信号。 信号分析仪将测量的超声信号与预期结果进行比较。 该预期结果是从波传播模型产生的。 然后将分析显示在监视器上。

    Mid-IR laser for generation of ultrasound
    4.
    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
    6.
    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
    8.
    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。