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1. 发明授权

US07918141B1 Local residual stress measurement and analysis for detection and prediction of damage in thermal barrier coatings 有权
标题翻译：局部残余应力测量和分析，用于检测和预测热障涂层的损伤
公开(公告)号：US07918141B1
公开(公告)日：2011-04-05
申请号：US11973977
申请日：2007-10-04
申请人： Shamachary Sathish , Sonia A. Martinez
发明人： Shamachary Sathish , Sonia A. Martinez
IPC分类号： G01L5/00
CPC分类号： G01L5/0047 , F01D5/286 , G01N3/60
摘要： The present invention provides a method for evaluating degradation of a thermal barrier coating disposed on a turbine blade. The method includes measuring a residual stress of an outer surface portion of a thermal barrier coating on a turbine blade, the turbine blade having been subjected to normal operating conditions and determining degradation of the thermal barrier coating based on a comparison between the residual stress measurement and a control stress measurement.
摘要翻译：本发明提供一种用于评估设置在涡轮叶片上的热障涂层的劣化的方法。该方法包括测量涡轮叶片上的热障涂层的外表面部分的残余应力，涡轮叶片已经经受正常操作条件并且基于残余应力测量和控制应力测量。

2. 发明授权

US08322221B1 Non-contact high resolution near field acoustic imaging system 有权
标题翻译：非接触高分辨率近场声学成像系统
公开(公告)号：US08322221B1
公开(公告)日：2012-12-04
申请号：US12411826
申请日：2009-03-26
申请人： Shamachary Sathish , John T. Welter , Kumar V. Jata , Richard Reibel
发明人： Shamachary Sathish , John T. Welter , Kumar V. Jata , Richard Reibel
IPC分类号： G01N9/24 , G01N29/04
CPC分类号： G01N29/043 , G01N29/0654 , G01N29/2456 , G01N29/28 , G01N2291/0421 , G01N2291/0423
摘要： A non-contact near field high resolution acoustic imaging system of a sample, the system including an acoustic wave generator generating a plurality of acoustic waves a ultrasonic horn amplifying the waves to an amplitude of between about 20 microns and about 300 microns, and a frequency between about 20 kHz and about 40 khz. The ultrasonic horn further directs the amplified waves to impinge upon the sample. On contact between the waves and the sample, a plurality of transmitted energy is transmitted to the sample, a plurality of longitudinal displacements and surface acoustic wave displacements in the sample are created. An adjustable separation distance lies between the sample and the ultrasonic horn, the distance adjusted to maximize the transmitted energy. The distance is preferably greater than the maximum displacement of the ultrasonic horn, or approximately 0.1 mm. The non-contact near field high resolution acoustic imaging system further includes a surface displacement detector for detecting the longitudinal wave displacements or surface acoustic wave displacements, the detector including a tip and a tip diameter; and a computer for digitizing and storing the longitudinal wave displacements or surface acoustic wave displacements. The longitudinal displacements or surface acoustic wave displacements are analyzed to create an image of at least a portion of the sample, the image alternatively having a resolution about equal to the surface displacement detector tip diameter.
摘要翻译：一种样品的非接触近场高分辨率声学成像系统，该系统包括产生多个声波的声波发生器，将波幅放大到约20微米至约300微米之间的振幅，以及频率约20kHz至约40khz。超声波喇叭进一步引导放大的波撞击样品。在波与样品之间接触时，多个透射能量被传输到样品，产生样品中的多个纵向位移和表面声波位移。样品和超声波喇叭之间可调距离距离，调整距离以最大化发射能量。该距离优选地大于超声波喇叭的最大位移，或大约0.1mm。非接触近场高分辨率声学成像系统还包括用于检测纵波位移或表面声波位移的表面位移检测器，检测器包括尖端和尖端直径; 以及用于数字化和存储纵波位移或表面声波位移的计算机。分析纵向位移或表面声波位移以产生至少一部分样品的图像，该图像具有大约等于表面位移检测器尖端直径的分辨率。

3. 发明申请

US20090000382A1 NON-CONTACT ACOUSTO-THERMAL METHOD AND APPARATUS FOR DETECTING INCIPIENT DAMAGE IN MATERIALS 审中-公开
标题翻译：用于检测材料中易损坏的非接触式热电偶方法和装置
公开(公告)号：US20090000382A1
公开(公告)日：2009-01-01
申请号：US12136332
申请日：2008-06-10
申请人： Shamachary Sathish , Kumar V. Jata , John T. Welter , Thomas R. Boehlein , Norman D. Schehl
发明人： Shamachary Sathish , Kumar V. Jata , John T. Welter , Thomas R. Boehlein , Norman D. Schehl
IPC分类号： G01N29/04
CPC分类号： G01N25/72 , G01N29/228 , G01N29/2418 , G01N2291/0231 , G01N2291/0258 , G01N2291/02827 , G01N2291/02881 , G01N2291/0421
摘要： A non-contact acousto-thermal method and apparatus are provided for detection of incipient damage in materials. The apparatus utilizes an ultrasonic horn which receives an acoustic wave generated by an ultrasonic transducer energized by an RF pulse. The ultrasonic horn is placed at a distance from the sample to be tested with sufficient gap so that when excited, the face of the ultrasonic horn does not come into contact with the sample. An IR camera is placed at a distance from the opposite side of the sample. The acoustic wave is amplified by the ultrasonic horn, and the interaction between the sample and the acoustic wave produces changes in the temperature of the sample in the region of interaction during acoustic excitation such that the temperature of the material rapidly increases. The temperature-time profile is captured by the IR camera and may be analyzed by a data acquisition unit.
摘要翻译：提供了非接触式声热法和装置，用于检测材料中的初期损伤。该装置使用超声波喇叭，该超声波喇叭接收由RF脉冲激励的超声换能器产生的声波。将超声波喇叭放置在与待测试样品一定距离的距离处，具有足够的间隙，使得当被激发时，超声波喇叭的表面不与样品接触。将IR相机放置在与样品相反一侧的距离处。声波被超声波喇叭放大，样品和声波之间的相互作用在声学激发期间在相互作用区域中产生样品的温度变化，使得材料的温度迅速增加。温度 - 时间曲线由红外摄像机捕获，并可由数据采集单元进行分析。

4. 发明授权

US08726410B2 Atomic force microscopy system and method for nanoscale measurement 有权
标题翻译：原子力显微镜系统和纳米尺度测量方法
公开(公告)号：US08726410B2
公开(公告)日：2014-05-13
申请号：US13194422
申请日：2011-07-29
申请人： Shamachary Sathish , Vijayaraghava Nalladega , Kumar V Jata , Mark P Blodgett
发明人： Shamachary Sathish , Vijayaraghava Nalladega , Kumar V Jata , Mark P Blodgett
IPC分类号： G01Q60/50 , G01Q60/56
CPC分类号： G01Q60/08
摘要： An atomic force microscope (AFM) system capable of imaging multiple physical properties of a sample material at the nanoscale level. The system provides an apparatus and method for imaging physical properties using an electromagnetic coil placed under the sample. Excitation of the coil creates currents in the sample, which may be used to image a topography of the sample, a physical property of the sample, or both.
摘要翻译：原子力显微镜（AFM）系统能够在纳米尺度上对样品材料的多种物理特性进行成像。该系统提供了使用放置在样品下方的电磁线圈对物理性质进行成像的装置和方法。线圈的激发在样品中产生电流，其可用于对样品的形貌进行成像，样品的物理性质或两者。

5. 发明授权

US07716987B2 Non-contact thermo-elastic property measurement and imaging system for quantitative nondestructive evaluation of materials 有权
标题翻译：非接触热弹性性能测量和成像系统进行材料定量无损检测
公开(公告)号：US07716987B2
公开(公告)日：2010-05-18
申请号：US11496116
申请日：2006-07-31
申请人： Shamachary Sathish , Richard Reibel , John T. Welter , Charles Buynak
发明人： Shamachary Sathish , Richard Reibel , John T. Welter , Charles Buynak
IPC分类号： G01N29/04 , G01N25/00 , G01J5/02
CPC分类号： G01N25/72 , G01N2291/0231 , G01N2291/0258 , G01N2291/02827 , G01N2291/02881 , G01N2291/0421
摘要： A non-contact thermo-elastic property measurement and imaging system and method thereof are described. Acoustic energy is incident on a first surface of a specimen under test. The acoustic energy is converted partially into heat by the specimen, causing a slight increase in the temperature in a region of interaction. The temperature increase is imaged using a high sensitivity infrared camera. Presence of defects (surface and subsurface) in the material modifies the distribution of temperature. An image of temperature distribution can be used for nondestructive testing and evaluation of materials. The temperature change in the specimen caused by acoustic excitation is related to thermal and elastic properties of the material. A measurement of the change in the temperature as a function of the amplitude of incident excitation can be used for direct measurement of thermo-elastic property of the specimen.
摘要翻译：描述非接触热弹性性质测量和成像系统及其方法。声能入射在被测样品的第一表面上。声能被样品部分转化为热，导致相互作用区域的温度略有增加。使用高灵敏度红外摄像机对温度升高进行成像。材料中缺陷（表面和表面）的存在会改变温度分布。温度分布图可用于材料的无损检测和评估。由声激发引起的样品温度变化与材料的热和弹性性质有关。作为入射激发振幅的函数的温度变化的测量可以用于直接测量样品的热弹性。

6. 发明申请

US20120030846A1 Atomic Force Microscopy System and Method for Nanoscale Measurement 有权
标题翻译：原子力显微镜系统和纳米尺度测量方法
公开(公告)号：US20120030846A1
公开(公告)日：2012-02-02
申请号：US13194422
申请日：2011-07-29
申请人： Shamachary Sathish , Vijayaraghava Nalladega , Kumar V. Jata , Mark P. Blodgett
发明人： Shamachary Sathish , Vijayaraghava Nalladega , Kumar V. Jata , Mark P. Blodgett
IPC分类号： G01Q20/02 , G01Q10/00
CPC分类号： G01Q60/08
摘要： An atomic force microscope (AFM) system capable of imaging multiple physical properties of a sample material at the nanoscale level. The system provides an apparatus and method for imaging physical properties using an electromagnetic coil placed under the sample. Excitation of the coil creates currents in the sample, which may be used to image a topography of the sample, a physical property of the sample, or both.
摘要翻译：原子力显微镜（AFM）系统能够在纳米尺度上对样品材料的多种物理特性进行成像。该系统提供了使用放置在样品下方的电磁线圈对物理性质进行成像的装置和方法。线圈的激发在样品中产生电流，其可用于对样品的形貌进行成像，样品的物理性质或两者。

7. 发明申请

US20080022775A1 Non-contact thermo-elastic property measurement and imaging system for quantitative nondestructive evaluation of materials 有权
标题翻译：非接触热弹性性能测量和成像系统进行材料定量无损检测
公开(公告)号：US20080022775A1
公开(公告)日：2008-01-31
申请号：US11496116
申请日：2006-07-31
申请人： Shamachary Sathish , Richard Reibel , John T. Welter , Charles Buynak
发明人： Shamachary Sathish , Richard Reibel , John T. Welter , Charles Buynak
IPC分类号： G01N29/04
CPC分类号： G01N25/72 , G01N2291/0231 , G01N2291/0258 , G01N2291/02827 , G01N2291/02881 , G01N2291/0421
摘要： A non-contact thermo-elastic property measurement and imaging system and method thereof are described. Acoustic energy is incident on a first surface of a specimen under test. The acoustic energy is converted partially into heat by the specimen, causing a slight increase in the temperature in a region of interaction. The temperature increase is imaged using a high sensitivity infrared camera. Presence of defects (surface and subsurface) in the material modifies the distribution of temperature. An image of temperature distribution can be used for nondestructive testing and evaluation of materials. The temperature change in the specimen caused by acoustic excitation is related to thermal and elastic properties of the material. A measurement of the change in the temperature as a function of the amplitude of incident excitation can be used for direct measurement of thermo-elastic property of the specimen.
摘要翻译：描述非接触热弹性性质测量和成像系统及其方法。声能入射在被测样品的第一表面上。声能被样品部分转化为热，导致相互作用区域的温度略有增加。使用高灵敏度红外摄像机对温度升高进行成像。材料中缺陷（表面和表面）的存在会改变温度分布。温度分布图可用于材料的无损检测和评估。由声激发引起的样品温度变化与材料的热和弹性性质有关。作为入射激发振幅的函数的温度变化的测量可以用于直接测量样品的热弹性。

8. 依法登记的发明

USH2049H2 Differential property sensitive acoustic lens 有权
公开(公告)号：USH2049H2
公开(公告)日：2002-10-01
申请号：US09478562
申请日：2000-01-06
申请人： Shamachary Sathish , Mark J. Ruddell , Robert L. Crane
发明人： Shamachary Sathish , Mark J. Ruddell , Robert L. Crane
IPC分类号： G01N2900
摘要： A differential property sensitive acoustic lens for non-destructive materials evaluation is described which in a preferred embodiment comprises first and second substantially semicylindrical shaped portions of fused silica disposed in closely spaced relationship along an axial plane, a substantially spherical depression defined in one end of each semicylindrical portion and a flat defined on each semicylindrical portion at the other end, a piezoelectric transducer attached to the flat of each semicylindrical portion, and a paraffin coated aluminum film of preselected thickness disposed between and in laminar contact with the semicylindrical portions for preventing acoustic and electrical cross talk between the transducers and between the semicylindrical portions.

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