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1. 发明授权

US07286241B2 System and method for high-speed laser detection of ultrasound 有权
标题翻译：超声波高速激光检测系统及方法
公开(公告)号：US07286241B2
公开(公告)日：2007-10-23
申请号：US10152743
申请日：2002-05-22
申请人： Thomas E. Drake, Jr.
发明人： Thomas E. Drake, Jr.
IPC分类号： G01B9/02
CPC分类号： G01N29/2418 , A61B5/0097 , G01H9/00 , G01N2291/0421 , H01S3/0064 , H01S3/0941 , H01S3/2316 , H01S3/2325 , H01S3/2341
摘要： A system and method for laser light amplification provides amplification of a laser light beam emitted from a laser light source as low-amplification seed laser light signal. The low-amplification seed laser light signal is transmitted to an amplification component. The amplification component amplifies the low-amplification seed laser light signal by stimulating emissions of the population inversion provided by a pumping diode to generate an amplified laser light signal. The system and method further directs the amplified laser light signal to an output destination. The destination may be an object undergoing laser ultrasound testing. The amplified laser light may reflect with a modulation characteristic of a sound energy wave about the object. The reflected laser light may be collected by an interferometer and used in the detection and characterization of the sound energy wave. The result of the present invention is a system and method of operation providing higher pulse rates, improved pointing stability, and optionally variable pulse rates for a variety of uses, including for non-destructive laser ultrasonic testing of materials.
摘要翻译：用于激光放大的系统和方法提供从激光光源发射的激光束的放大作为低放大种子激光信号。低放大种子激光信号被传输到放大部件。放大组件通过激励由泵浦二极管提供的群体反转的发射来放大低放大种子激光信号，以产生放大的激光信号。该系统和方法进一步将放大的激光信号引导到输出目的地。目的地可以是经历激光超声测试的对象。放大的激光可以以关于物体的声能波的调制特性反射。反射的激光可以被干涉仪收集并用于声能波的检测和表征。本发明的结果是为各种用途提供更高的脉率，改进的指向稳定性和可选的可变脉冲速率的系统和方法，包括用于材料的非破坏性激光超声波测试。

2. 发明授权

US07038790B2 Method and apparatus for detecting ultrasonic surface displacements using post-collection optical amplification 失效
公开(公告)号：US07038790B2
公开(公告)日：2006-05-02
申请号：US10668896
申请日：2003-09-23
申请人： Thomas E. Drake, Jr.
发明人： Thomas E. Drake, Jr.
IPC分类号： G01B9/02
CPC分类号： G01D5/266 , G01B11/161 , G01N29/2418 , G01N29/50 , G01N2291/0231 , G01N2291/0421
摘要： The present invention detects ultrasonic displacements includes a detection laser to generate a first pulsed laser beam to detect the ultrasonic surface displacements on a surface of the target. Collection optics to collect phase modulated light from the first pulsed laser beam either reflected or scattered by the target. An optical amplifier which amplifies the phase modulated light collected by the collection optics. An interferometer which processes the phase modulated light and generate at least one output signal. A processor that processes the at least one output signal to obtain data representative of the ultrasonic surface displacement at the target.

3. 发明授权

US06643002B2 System and method for locating and positioning an ultrasonic signal generator for testing purposes 有权
公开(公告)号：US06643002B2
公开(公告)日：2003-11-04
申请号：US09907493
申请日：2001-07-16
申请人： Thomas E. Drake, Jr.
发明人： Thomas E. Drake, Jr.
IPC分类号： G01N2100
CPC分类号： G01S13/89 , G01N29/04 , G01N29/2418 , G01N2291/0231 , G01N2291/2694 , G01S5/0247 , G01S5/16 , G01S15/8906 , G01S17/46 , G01S17/89
摘要： The invention is directed to an ultrasonic testing system. The system tests a manufactured part for various physical attributes, including specific flaws, defects, or composition of materials. The part can be housed in a gantry system that holds the part stable. An energy generator illuminates the part within energy and the part emanates energy from that illumination. Based on the emanations from the part, the system can determined precisely where the part is in free space. The energy illumination device and the receptor have a predetermined relationship in free space. This means the location of the illumination mechanism and the reception mechanism is known. Additionally, the coordinates of the actual testing device also have a predetermined relationship to the illumination device, the reception device, or both. Thus, when one fixes the points in free space where the part is relative to either of the illumination device or the reception device, one can fix the point and/or orientation of the testing device to that part as well. It should be noted that the results of the point and/or orientation detection may also be used in an actuator and control system. If the position of the testing device needs to be altered with respect to the tested object, the control system and actuator may use the results of this determination to move the testing device relative to the tested object.

4. 发明授权

US07800762B2 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：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。

5. 发明授权

US07561281B2 System and method for controlling tube thickness 有权
公开(公告)号：US07561281B2
公开(公告)日：2009-07-14
申请号：US10142073
申请日：2002-05-09
申请人： Thomas E. Drake, Jr.
发明人： Thomas E. Drake, Jr.
IPC分类号： G01B9/02
CPC分类号： G01N21/1702 , G01B9/02 , G01B11/161 , G01B17/02 , G01D5/266 , G01K11/22 , G01K11/26 , G01N29/0618 , G01N29/11 , G01N29/2418 , G01N29/326 , G01N29/50 , G01N33/346 , G01N2021/1706 , G01N2291/0231 , G01N2291/0237 , G01N2291/02827 , G01N2291/02854 , G01N2291/02881 , G01N2291/0426 , G01N2291/044 , G01N2291/2634 , G05D23/1917 , G05D23/27
摘要： The invention is directed to a system and method for implementing process control for tubing thickness using sonic NDE techniques. The system may, for example, generate ultrasound waves in a test object during the manufacturing process. A detector such as an interferometer may be used to detect the ultrasound waves. An interpreter or analyzer may determine the tubing or sheet thickness from the waves. Then, a control system may determine and implement an appropriate control action on the process.

6. 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。

7. 发明授权

US07612890B2 System and method for controlling wafer temperature 有权
公开(公告)号：US07612890B2
公开(公告)日：2009-11-03
申请号：US10142178
申请日：2002-05-09
申请人： Thomas E. Drake, Jr.
发明人： Thomas E. Drake, Jr.
IPC分类号： G01B9/02
CPC分类号： G01N29/4418 , G01B11/161 , G01D5/266 , G01K11/22 , G01K11/26 , G01N21/1702 , G01N29/0618 , G01N29/11 , G01N29/2418 , G01N29/326 , G01N29/4427 , G01N29/48 , G01N29/50 , G01N33/346 , G01N2021/1706 , G01N2291/0231 , G01N2291/0237 , G01N2291/02827 , G01N2291/02854 , G01N2291/02881 , G01N2291/0426 , G01N2291/044 , G05D23/1917 , G05D23/27 , H01L21/67248
摘要： The invention is directed to a system and method for implementing process control for temperature of a semiconductor wafer using sonic NDE techniques. The system may, for example, generate ultrasound waves in a test object during the manufacturing process. A detector such as an interferometer may be used to detect the ultrasound waves. An interpreter or analyzer may determine the temperature of the semiconductor wafer from the waves. Then, a control system may determine and implement an appropriate control action on the process.

8. 发明授权

US07545509B2 System and method for online control of paper elasticity and thickness 有权
公开(公告)号：US07545509B2
公开(公告)日：2009-06-09
申请号：US10142072
申请日：2002-05-09
申请人： Thomas E. Drake, Jr.
发明人： Thomas E. Drake, Jr.
IPC分类号： G01B9/02
CPC分类号： G01B9/02 , D21G9/00 , G01B11/161 , G01D5/266 , G01K11/22 , G01K11/26 , G01N21/1702 , G01N29/0618 , G01N29/11 , G01N29/2418 , G01N29/326 , G01N29/50 , G01N33/346 , G01N2021/1706 , G01N2291/0231 , G01N2291/0237 , G01N2291/02827 , G01N2291/02854 , G01N2291/02881 , G01N2291/0426 , G01N2291/044 , G05D23/1917 , G05D23/27
摘要： The invention is directed to a system and method for implementing process control for paper elasticity and thickness using sonic NDE techniques. The system may, for example, generate ultrasound waves in a test object during the manufacturing process. A detector such as an interferometer may be used to detect the ultrasound waves. An interpreter or analyzer may determine the thickness and/or elastic properties of paper from the waves. Then, a control system may determine and implement an appropriate control action on the process.

9. 发明授权

US07463363B2 Method and apparatus for ultrasonic laser testing 有权
标题翻译：超声波激光测试方法和装置
公开(公告)号：US07463363B2
公开(公告)日：2008-12-09
申请号：US10634342
申请日：2003-08-05
申请人： Thomas E. Drake, Jr. , Mark A. Osterkamp
发明人： Thomas E. Drake, Jr. , Mark A. Osterkamp
IPC分类号： G01B9/02
CPC分类号： G01D5/266 , G01B11/161 , G01N29/2418 , G01N2291/0231
摘要： The present invention for detecting ultasonic displacements includes a detection laser to generate a first pulsed laser beam to generate the ultrasonic surface displacements on a surface of the target. A seocond pulsed laser beam to detect the ultrasonic surface displacements on a surface of the target. Collection optics to collect phase modulated light from the first pulsed laser beam either reflected or scattered by the target. An interferometer which processes the phase modulated light and generate at least one output signal. A processor that processes the at least one output signal to obtain data representative of the ultrasonic surface displacements at the target.
摘要翻译：用于检测超声波位移的本发明包括检测激光器以产生第一脉冲激光束以在目标表面上产生超声波表面位移。用于探测目标表面上的超声波表面位移的接缝脉冲激光束。收集光学器件，用于收集来自第一脉冲激光束的相位调制光，由目标反射或散射。一种干涉仪，其处理相位调制光并产生至少一个输出信号。处理器，其处理所述至少一个输出信号以获得表示所述目标处的超声波表面位移的数据。

10. 发明授权

US07369250B2 System and method to inspect components having non-parallel surfaces 有权
标题翻译：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。

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