专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明申请

US20080316498A1 APPARATUS AND METHOD FOR TWO WAVE MIXING (TWM) BASED ULTRASONIC LASER TESTING 有权
标题翻译：用于双波混频（TWM）的超声波激光测试的装置和方法
公开(公告)号：US20080316498A1
公开(公告)日：2008-12-25
申请号：US11553485
申请日：2006-10-27
申请人： Thomas E. Drake, JR. , Marc Dubois
发明人： Thomas E. Drake, JR. , Marc Dubois
IPC分类号： G01B9/02
CPC分类号： G01N29/2418 , G01B9/02083 , G01B2290/65 , G01N2291/0231
摘要： A system and method for detecting ultrasonic surface displacements at a remote target are disclosed, one embodiment of the system comprising: a first laser to generate a first laser beam. The first laser beam produces ultrasonic surface displacements on a surface of the remote target. A second laser generates a second laser beam operable to detect the ultrasonic surface displacements on the surface of the remote target and to provide a reference beam to an interferometer. The second laser beam is split, at a beam-splitter, into a pump beam and a probe beam. The pump beam is amplified by a first amplifier and the probe beam is amplified by a second amplifier. The pump beam is then provided to the interferometer as a reference beam and the probe beam is directed to the target to detect the ultrasonic surface displacements. The first and second amplifiers can be controlled independently of one another to control their respective laser beam's power. Collection optics collect phase modulated light from the probe beam either reflected or scattered by the remote target, which can be optionally optically processed to increase the light intensity. The interferometer is a TWM interferometer that receives and processes the phase modulated light and generates at least one output signal based on the phase-modulated light and the amplified reference laser beam.
摘要翻译：公开了一种用于在远程目标处检测超声表面位移的系统和方法，该系统的一个实施例包括：第一激光器，用于产生第一激光束。第一激光束在远程目标的表面上产生超声表面位移。第二激光器产生可操作以检测远程目标表面上的超声波表面位移并向干涉仪提供参考光束的第二激光束。第二激光束在分束器处分成泵浦光束和探测光束。泵浦光束由第一放大器放大，并且探测光束被第二放大器放大。然后将泵浦光束作为参考光束提供给干涉仪，并将探测光束引导到目标以检测超声波表面位移。可以彼此独立地控制第一和第二放大器以控制它们各自的激光束的功率。收集光学器件收集来自探测光束的相位调制光，其被远程目标物反射或散射，其可以可选地被光学处理以增加光强度。干涉仪是TWM干涉仪，其接收和处理相位调制光并且基于相位调制光和放大的参考激光束产生至少一个输出信号。

12. 发明申请

US20080291963A1 Fiber-based mid-infrared generation laser for laser ultrasound inspection 有权
标题翻译：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：US20080291963A1
公开(公告)日：2008-11-27
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： H01S3/09
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。

13. 发明授权

US06684701B2 System and method of determining porosity in composite materials using ultrasound 有权
标题翻译：使用超声波测定复合材料孔隙度的系统和方法
公开(公告)号：US06684701B2
公开(公告)日：2004-02-03
申请号：US09905444
申请日：2001-07-13
申请人： Marc Dubois , John B. Deaton, Jr. , Peter W. Lorraine , Thomas E. Drake, Jr. , Robert J. Filkins
发明人： Marc Dubois , John B. Deaton, Jr. , Peter W. Lorraine , Thomas E. Drake, Jr. , Robert J. Filkins
IPC分类号： G01H100
CPC分类号： G01N29/30 , G01N29/11 , G01N29/2418 , G01N29/449 , G01N29/46 , G01N2291/014 , G01N2291/0231 , G01N2291/0245 , G01N2291/0289 , G01N2291/0421 , G01N2291/044
摘要： The invention provides for ultrasonically measuring the porosity in a sample composite material by accessing only one side of the sample composite material and includes the steps of measuring a sample ultrasonic signal from the sample composite material, normalizing the sample ultrasonic signal relative to the surface echo of the sample composite material, and isolating a sample back-wall echo signal from the sample ultrasonic signal. A sample frequency spectrum of the sample back-wall ultrasonic signal is then determined. Next, the method and system include the steps of measuring a reference ultrasonic signal from a reference composite material, normalizing the reference ultrasonic signal relative to the surface echo of the reference composite material; and isolating a reference back-wall echo signal from the sample ultrasonic signal. A reference frequency spectrum of the reference back-wall ultrasonic signal is then determined. The invention further includes deriving the ultrasonic attenuation of the sample ultrasonic signal as the ratio of the sample frequency spectrum to the reference frequency spectrum over a predetermined frequency range. Comparing the derived ultrasonic attenuation to predetermined attenuation standards permits evaluating the porosity of the sampled composite material.
摘要翻译：本发明提供了通过仅访问样品复合材料的一侧来超声波测量样品复合材料中的孔隙率，并且包括以下步骤：从样品复合材料测量样品超声波信号，使样品超声信号相对于表面回波归一化样品复合材料，并从样品超声波信号中分离样品后壁回波信号。然后确定样品后壁超声波信号的采样频谱。接下来，该方法和系统包括以下步骤：从参考复合材料测量参考超声波信号，使参考超声信号相对于参考复合材料的表面回波标准化; 并从样本超声波信号隔离参考后壁回波信号。然后确定参考后壁超声波信号的参考频谱。本发明还包括将样本超声波信号的超声波衰减导出为在预定频率范围内的采样频谱与参考频谱的比率。将得到的超声波衰减与预定的衰减标准进行比较，可以评估采样的复合材料的孔隙率。

14. 发明授权

US08113056B2 Mid-IR laser for generation of ultrasound using a CO2 laser and harmonic generation 有权
标题翻译：用于使用CO2激光器和谐波发生产生超声的中红外激光器
公开(公告)号：US08113056B2
公开(公告)日：2012-02-14
申请号：US12121012
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： G01N29/04 , G01N21/41
CPC分类号： G01N29/2418 , G01N21/1702 , G01N2021/1706
摘要： A mid infrared range laser source for ultrasound inspection having a high energy laser coupled with one or more harmonic generation devices. The high energy laser may be a CO2 laser and tuned to emit laser light at a single wavelength. The harmonic generation devices convert the laser beam into the mid infrared range for optimal ultrasound inspection.
摘要翻译：用于超声检查的中红外范围激光源，其具有与一个或多个谐波发生器件耦合的高能量激光器。高能激光器可以是CO 2激光器并被调谐以在单个波长处发射激光。谐波发生装置将激光束转换为中红外范围，以实现最佳超声检查。

15. 发明授权

US07941018B2 Block-terminated fiber for laser generation of ultrasonic waves 有权
标题翻译：用于激光产生超声波的块端接光纤
公开(公告)号：US07941018B2
公开(公告)日：2011-05-10
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。

16. 发明申请

US20090285523A1 HOLLOW CORE WAVEGUIDE FOR LASER GENERATION OF ULTRASONIC WAVES 有权
标题翻译：用于激光生成超声波的中空波导
公开(公告)号：US20090285523A1
公开(公告)日：2009-11-19
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： G02B6/12
CPC分类号： G02B6/4206 , B23K26/03 , B23K26/06 , B23K26/0884 , G01N29/2418 , G01N29/265
摘要： A laser transmission system.
摘要翻译：激光传输系统。

17. 发明申请

US20090285244A1 MID-IR LASER FOR GENERATION OF ULTRASOUND 有权
标题翻译：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。

18. 发明授权

US07474411B2 System and method to reduce laser noise for improved interferometric laser ultrasound detection 有权
标题翻译：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。

19. 发明授权

US08220335B2 Accurate image acquisition for structured-light system for optical shape and positional measurements 有权
标题翻译：用于光学形状和位置测量的结构光系统的精确图像采集
公开(公告)号：US08220335B2
公开(公告)日：2012-07-17
申请号：US12122034
申请日：2008-05-16
申请人： Marc Dubois , Thomas E. Drake, Jr. , Mark A. Osterkamp , David L. Kaiser , Tho X. Do
发明人： Marc Dubois , Thomas E. Drake, Jr. , Mark A. Osterkamp , David L. Kaiser , Tho X. Do
IPC分类号： G01N29/04 , G01S5/02
CPC分类号： G01B11/2518
摘要： A system and method for the analysis of composite materials. Improved techniques for the measurement of the shape and position of the composite article are provided, which include improved scanning rates using structured light.
摘要翻译：一种用于复合材料分析的系统和方法。提供了用于测量复合制品的形状和位置的改进技术，其包括使用结构光的改进的扫描速率。

20. 发明授权

US08064488B2 Mid-IR laser for generation of ultrasound 有权
标题翻译：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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式