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21.发明授权System and method to decrease probe size for improved laser ultrasound detection 失效减少探针尺寸的系统和方法，以改善激光超声检测公开(公告)号：US07576848B2
公开(公告)日：2009-08-18
申请号：US11018994
申请日：2004-12-21
IPC分类号： G01N21/00
CPC分类号： G01N21/474 , G01N21/1702 , G01N29/2418
摘要： The present invention provides a compact optical probe assembly that measures ultrasound in materials. The probe uses angle-terminated optical fiber to direct illumination laser light at the surface of a remote target. Ultrasonic displacements at the surface scatter the illumination laser light. Angle-terminated optical fibers collect phase modulated light and direct the phase modulated light to an optical processor to produce a signal representative of the ultrasonic surface displacements. The probe may also incorporate angle-terminated optical fibers to direct generation laser light to the surface of a remote target to generate ultrasonic surface displacements. Optional shared beam forming element(s) may optically act on the illumination laser and collected phase modulated light.
摘要翻译： 本发明提供一种测量材料中的超声波的紧凑型光学探针组件。 探头使用角度端接的光纤将照明激光引导到远程目标的表面。 表面的超声波位移散射照明激光。 角度端接的光纤收集相位调制的光并将相位调制的光引导到光学处理器以产生代表超声表面位移的信号。 探针还可以包括角度端接的光纤以将生成的激光引导到远程目标的表面以产生超声表面位移。 可选的共享波束形成元件可以光学地作用于照明激光器和收集的相位调制光。
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22.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
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。
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公开(公告)号：US08064488B2
公开(公告)日：2011-11-22
申请号：US12120949
申请日：2008-05-15
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。
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24.发明授权Method and apparatus for spectroscopic characterization of samples using a laser-ultrasound system 有权使用激光超声系统对样品进行光谱表征的方法和装置公开(公告)号：US08054470B2
公开(公告)日：2011-11-08
申请号：US12120907
申请日：2008-05-15
IPC分类号： G01B9/02
CPC分类号： G01N29/2418 , G01N29/12 , G01N29/4409 , G01N2291/0231 , G01N2291/2694
摘要： A method of spectroscopic analysis of a material using a laser ultrasound system. The method includes measuring amplitude displacement of a target surface that has been excited with a generation laser. The amplitude displacements relate to the target's optical absorption properties. Amplitude displacements are generated over a range of laser wavelengths to obtain an optical absorption signature useful to identify the target material characteristics.
摘要翻译： 使用激光超声系统对材料进行光谱分析的方法。 该方法包括测量已经用发生激光器激发的目标表面的振幅位移。 振幅位移与目标的光吸收特性有关。 在激光波长范围内产生幅度位移以获得用于识别目标材料特性的光学吸收特征。
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25.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
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。
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公开(公告)号：US07791739B2
公开(公告)日：2010-09-07
申请号：US10828068
申请日：2004-04-20
IPC分类号： G01B11/14
CPC分类号： G01N29/2418 , G01N29/348 , G01N2291/0421
摘要： A system and method that replaces safety requirements of a laser detection system by shifting the wavelength of a detection laser. An optical wavelength converter that shifts the optical wavelength of a detection laser from a first wavelength within the Infrared “A” portion of the spectrum to a more eye-safe wavelength. The 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 that produces a signal representative of the ultrasonic displacements. Signal processors then determine the internal structure of the remote target based on the signal.
摘要翻译： 通过移动检测激光器的波长来代替激光检测系统的安全要求的系统和方法。 一种光学波长转换器，其将检测激光器的光波长从光谱的红外“A”部分内的第一波长移位到更安全的波长。 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产生表示超声波位移的信号的光学处理器。 然后，信号处理器根据信号确定远程目标的内部结构。
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公开(公告)号：US07784348B2
公开(公告)日：2010-08-31
申请号：US11709342
申请日：2007-02-21
CPC分类号： G01N21/1702 , G10K15/046
摘要： An ultrasonic non-destructive evaluation (NDE) system operable to inspect target materials is provided. This ultrasonic NDE system includes an articulated robot, an ultrasound inspection head, a processing module, and a control module. The ultrasound inspection head couples to or mounts on the articulated robot. The ultrasound inspection head is operable to deliver a generation laser beam, a detection laser beam, and collect phase modulated light scattered by the target materials. The processing module processes the phase modulated light and produces information about the internal structure of the target materials. The control module directs the articulated robot to position the ultrasound inspection head according to a pre-determined scan plan.
摘要翻译： 提供可操作以检查目标材料的超声波无损评估（NDE）系统。 该超声波NDE系统包括铰接机器人，超声检查头，处理模块和控制模块。 超声波检查头与铰接式机器人连接或安装在关节式机器人上。 超声波检查头可操作地传送一代激光束，检测激光束，并收集由目标材料散射的相位调制光。 处理模块处理相位调制光并产生关于目标材料的内部结构的信息。 控制模块根据预先确定的扫描计划指示关节式机器人定位超声检查头。
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公开(公告)号：US20090285527A1
公开(公告)日：2009-11-19
申请号：US12121507
申请日：2008-05-15
申请人： Marc Dubois , Thomas E. Drake, JR.
发明人： Marc Dubois , Thomas E. Drake, JR.
IPC分类号： G02B6/32
CPC分类号： B23K26/06 , G02B6/4206 , G02B6/4296
摘要： A laser transmission system.
摘要翻译： 激光传输系统。
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29.发明申请METHOD AND APPARATUS FOR SPECTROSCOPIC CHARACTERIZATION OF SAMPLES USING A LASER-ULTRASOUND SYSTEM 有权使用激光超声系统对样品的光谱特征的方法和装置公开(公告)号：US20090284752A1
公开(公告)日：2009-11-19
申请号：US12120907
申请日：2008-05-15
IPC分类号： G01B9/02
CPC分类号： G01N29/2418 , G01N29/12 , G01N29/4409 , G01N2291/0231 , G01N2291/2694
摘要： A method of spectroscopic analysis of a material using a laser ultrasound system. The method includes measuring amplitude displacement of a target surface that has been excited with a generation laser. The amplitude displacements relate to the target's optical absorption properties. Amplitude displacements are generated over a range of laser wavelengths to obtain an optical absorption signature useful to identify the target material characteristics.
摘要翻译： 使用激光超声系统对材料进行光谱分析的方法。 该方法包括测量已经用发生激光器激发的目标表面的振幅位移。 振幅位移与目标的光吸收特性有关。 在激光波长范围内产生幅度位移以获得用于识别目标材料特性的光学吸收特征。
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30.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
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。
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