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公开(公告)号：US07876453B1
公开(公告)日：2011-01-25
申请号：US12017726
申请日：2008-01-22
IPC分类号： G01B9/02
CPC分类号： G01N21/1702 , G01N21/8422 , G01N29/0663 , G01N29/12 , G01N29/2418 , G01N2021/8438 , G01N2291/2694
摘要： Techniques for ultrasonic determination of the interfacial relationship of multi-component systems are discussed. In implementations, a laser energy source may be used to excite a multi-component system including a first component and a second component at least in partial contact with the first component. Vibrations resulting from the excitation may be detected for correlation with a resonance pattern indicating if discontinuity exists at the interface of the first and second components.
摘要翻译： 讨论了超声波测定多组分体系界面关系的技术。 在实现中，可以使用激光能量源来激励包括至少部分地与第一部件接触的第一部件和第二部件的多部件系统。 可以检测由激励产生的振动与谐振模式的相关性，指示在第一和第二分量的界面处是否存在不连续性。
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公开(公告)号：US07798001B2
公开(公告)日：2010-09-21
申请号：US12244406
申请日：2008-10-02
CPC分类号： G01N29/265 , G01N29/0663 , G01N29/0681 , G01N29/069 , G01N2291/0232 , G01N2291/02827 , G01N2291/0427 , G01Q60/32 , G03H3/00
摘要： A high spatial resolution phase-sensitive technique employs a scanning near field ultrasound holography (SNFUH) methodology for imaging elastic as well as viscoelastic variations across a sample surface. SNFUH uses a near-field approach to measure time-resolved variations in ultrasonic oscillations at a sample surface. As such, it overcomes the spatial resolution limitations of conventional phase-resolved acoustic microscopy (i.e. holography) by eliminating the need for far-field acoustic lenses.
摘要翻译： 高空间分辨率相敏技术采用扫描近场超声全息（SNFUH）方法，用于在样品表面上成像弹性以及粘弹性变化。 SNFUH使用近场方法测量样品表面超声波振荡的时间分辨变化。 因此，它通过消除对远场声透镜的需要来克服常规相分离声学显微镜（即全息术）的空间分辨率限制。
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公开(公告)号：US07733742B2
公开(公告)日：2010-06-08
申请号：US11570252
申请日：2005-06-10
申请人： Michel Gross , Francois Georges Gerard Ramaz , Benoit Claude Forget , Gerald Roosen , Philippe Delaye , Albert-Claude Boccara
发明人： Michel Gross , Francois Georges Gerard Ramaz , Benoit Claude Forget , Gerald Roosen , Philippe Delaye , Albert-Claude Boccara
IPC分类号： H04B11/00
CPC分类号： G03H1/00 , A61B5/0059 , A61B5/0097 , A61B8/0825 , A61B8/0833 , G01N21/49 , G01N29/0663 , G01N29/2418 , G01N2291/0427 , G03H1/0406 , G03H2001/0268 , G03H2001/0463 , G03H2260/36
摘要： This invention concerns an acousto-optic imaging method comprising a step which consists in engraving in a dynamic holographic material a complex index array resulting from the interference of the acousto-optic component of the signal wave and a pump wave of frequency equal to the frequency of the acousto-optic component.
摘要翻译： 本发明涉及一种声光成像方法，其包括以下步骤：在动态全息材料中雕刻由信号波的声光分量的干扰产生的复数指数阵列和频率等于 声光部件。
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公开(公告)号：US20090114024A1
公开(公告)日：2009-05-07
申请号：US12244406
申请日：2008-10-02
CPC分类号： G01N29/265 , G01N29/0663 , G01N29/0681 , G01N29/069 , G01N2291/0232 , G01N2291/02827 , G01N2291/0427 , G01Q60/32 , G03H3/00
摘要： A high spatial resolution phase-sensitive technique employs a scanning near field ultrasound holography (SNFUH) methodology for imaging elastic as well as viscoelastic variations across a sample surface. SNFUH uses a near-field approach to measure time-resolved variations in ultrasonic oscillations at a sample surface. As such, it overcomes the spatial resolution limitations of conventional phase-resolved acoustic microscopy (i.e. holography) by eliminating the need for far-field acoustic lenses.
摘要翻译： 高空间分辨率相敏技术采用扫描近场超声全息（SNFUH）方法，用于在样品表面上成像弹性以及粘弹性变化。 SNFUH使用近场方法测量样品表面超声波振荡的时间分辨变化。 因此，它通过消除对远场声透镜的需要来克服常规相分离声学显微镜（即全息术）的空间分辨率限制。
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公开(公告)号：US5329817A
公开(公告)日：1994-07-19
申请号：US796711
申请日：1991-11-22
申请人： George F. Garlick , Glen C. Dunham
发明人： George F. Garlick , Glen C. Dunham
CPC分类号： G01N29/0663 , G01H3/125 , G03H3/00
摘要： A preferred embodiment of this invention is illustrated in FIG. 4 showing an offset and tilted object transducer 50 being rotated about a system axis 51 to sequentially insonify the object from various acute incident angles .theta. to the system axis to provide images of the out-of-focus structures at spaced locations at the hologram detection surface 18 at different spaced times. If the pulse rate of the object transducer is greater than the fusion of the eye, the eye is able to average two or more images into a single perceived image. Likewise, video equipment that receives images at a rate greater than 30 Hertz will average two or more images and display the image at a rate of approximately 30 Hertz. Additionally, external video processing may be utilized to electronically average two or more images electronically to obtain an averaged image at any time constant desired by the operator. Such a system effectively neutralizes or blends the out-of-focus structure of an object spaced from a selected focus plane 27 while maintaining the structure within the plane in sharp consistent contrast to provide consistent, quality images of the internal structure of an object 12.
摘要翻译： 图1中示出了本发明的优选实施例。 图4示出偏移和倾斜的物体换能器50围绕系统轴线51旋转，以将物体从各种急入射角度θ顺序地分散到系统轴线，以在全息图检测表面的间隔位置提供失焦结构的图像 18在不同的间隔时间。 如果对象传感器的脉冲频率大于眼睛的融合，则眼睛能够将两个或更多图像平均为单个感知图像。 同样，以大于30赫兹的速率接收图像的视频设备将平均两个或更多图像，并以大约30赫兹的速率显示图像。 此外，外部视频处理可以用于电子地平均两个或更多个图像，以在操作者期望的任何时间常数上获得平均图像。 这样的系统有效地中和或者混合了与选择的焦点平面27间隔开的物体的离焦结构，同时将结构保持在平面内与锐利一致的对比度，以提供对象12的内部结构的一致，高质量的图像。
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公开(公告)号：US4531411A
公开(公告)日：1985-07-30
申请号：US545426
申请日：1983-10-25
CPC分类号： G01N29/0663 , G01N29/14 , G01S5/22
摘要： Defects in a structure are imaged as they propagate, using their emitted acoustic energy as a monitored source. Short bursts of acoustic energy propagate through the structure to a discrete element receiver array. A reference timing transducer located between the array and the inspection zone initiates a series of time-of-flight measurements. A resulting series of time-of-flight measurements are then treated as aperture data and are transferred to a computer for reconstruction of a synthetic linear holographic image. The images can be displayed and stored as a record of defect growth.
摘要翻译： 结构中的缺陷在它们传播时被成像，使用其发射的声能作为监测的源。 声能的短阵列通过结构传播到离散元件接收器阵列。 位于阵列和检查区之间的参考定时换能器启动一系列飞行时间测量。 然后将所得到的一系列飞行时间测量值视为孔径数据，并将其传送到计算机以重建合成的线性全息图像。 可以将图像显示并存储为缺陷增长的记录。
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57.发明授权Method of and apparatus for detecting flaws inside articles, more particularly structural components, by means of acoustic holography 失效用于通过声全息技术检测物品内的瑕疵的方法和装置，更具体地说是结构部件
公开(公告)号：US4531410A
公开(公告)日：1985-07-30
申请号：US492414
申请日：1983-05-06
申请人： Horst-Artur Crostack
发明人： Horst-Artur Crostack
CPC分类号： G01N29/0663 , G01S15/897
摘要： In a method of and an apparatus for detecting flaws inside articles, the flaw area for detection being subjected to ultrasonic pulses on which, after reaction with the flaw, a reference beam is superimposed, whereupon the resulting interference field is holographically detected, reconstructed and evaluated. This method can be applied to thin and sound-scattering materials with improved resolution and a description of the flaw configuration and detection of the deformation behavior of flaws. In the method, a load is applied to the flaw area under investigation and this area is subjected to ultrasonic pulses at least at two different times each corresponding to an extreme value of the loading, the ultrasonic pulses being short with respect to the load period and, after reaction with the flaw, reference pulses are superimposed on the ultrasonic pulses, whereupon the holograms of these ultrasonic applications are superimposed to give an interferogram which can be evaluated. The block schematic diagram of an apparatus for performing the method is shown in FIG. 1, in which reference 1 denotes a loading unit, 3 an ultrasonic transmitter and the units 11-5 form a control unit.
摘要翻译： 在用于检测物品内的瑕疵的方法和装置中，用于检测的缺陷区域经受超声波脉冲，其上与缺陷反应之后叠加参考光束，从而对所得到的干涉场进行全息检测，重建和评估 。 该方法可以应用于具有改进的分辨率和缺陷构造的描述以及缺陷的变形行为的检测的薄和声散射材料。 在该方法中，将负载施加到被研究的缺陷区域，该区域至少在两个不同的时间进行超声波脉冲，每个时间对应于负载的极值，超声波脉冲相对于负载周期短; 在与缺陷反应之后，将参考脉冲叠加在超声波脉冲上，由此叠加这些超声波应用的全息图以产生可被评估的干涉图。 用于执行该方法的装置的方块示意图如图1所示。 在图1中，附图标记1表示加载单元，3表示超声波发送器，单元11-5形成控制单元。
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58.发明授权
公开(公告)号：US4284324A
公开(公告)日：1981-08-18
申请号：US917334
申请日：1978-06-20
CPC分类号： G03H1/00 , G01H9/002 , G01N29/0663 , G03H2260/35 , G03H2260/36 , G03H2260/54
摘要： The invention relates to the acousto-optical imagery of objects transmitting ultrasonic waves; an optical image diffracted by the action of an ultrasonic wave is detected by coherent detection in an electro-optical and photoconductive holographic recording material under an applied field by holographic recording of the interferences between the diffracted order to be imaged formed by the optical wave of pulsation .omega..sub.o +.omega..sub.s (or .omega..sub.o -.omega..sub.S) and an optical reference wave having the same pulsations. Imagery is effected in real time by restoration of the object wave by a reading wave having the same pulsation as the reference wave.
摘要翻译： 本发明涉及发射超声波的物体的声光图像; 通过超声波的作用衍射的光学图像通过在施加的场下的电光和光电全息记录材料中的相干检测来检测，通过全息记录通过脉动光波形成的待成像的衍射顺序之间的干扰 ωω+ω（或ωωω）和具有相同脉动的光学参考波。 通过与参考波具有相同脉动的读取波恢复对象波，实时地实现图像。
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公开(公告)号：US4252024A
公开(公告)日：1981-02-24
申请号：US961788
申请日：1978-11-17
申请人： Michael J. Hurwitz
发明人： Michael J. Hurwitz
CPC分类号： G10K11/26 , G01N29/0663 , G01N29/343 , G01S15/8972 , G01N2291/0234 , G01N2291/2695
摘要： Echo ranging flaw detecting, characterizing and studying apparatus in which the work is scanned simultaneously by acoustic energy focused at a point from an acoustic-lens transducer and by acoustic energy focused along a line along which it is propagated from a focused-arc transducer. The acoustical echos from the lens transducer are combined with an electrical analog of an acoustical reference wave to produce an acoustical interference pattern which is reconstructed into a holographic display or hologram by a laser beam. The echos from the focused-arc transducer produce a cathode-ray tube display or are stored in a memory.
摘要翻译： 回声测距探伤，特征和研究装置，其中通过聚焦在声透镜换能器的点处的声能同时扫描工作，并且沿着从聚焦电弧传感器传播的线聚焦的声能。 来自透镜换能器的声学回声与声学参考波的电气模拟组合以产生声学干涉图案，其通过激光束被重建成全息显示器或全息图。 来自聚焦电弧传感器的回波产生阴极射线管显示器或存储在存储器中。
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60.发明授权Linear transducer array and method for both pulse-echo and holographic acoustic imaging 失效线性换能器阵列和脉冲回波和全息声学成像方法
公开(公告)号：US4170142A
公开(公告)日：1979-10-09
申请号：US816095
申请日：1977-07-15
IPC分类号： A61B8/14 , A61B8/00 , B06B1/06 , F02B75/02 , G01N29/04 , G01N29/06 , G01S15/89 , G03H3/00 , G10K11/34
CPC分类号： G01N29/0663 , B06B1/0622 , G01N29/343 , G01S15/8918 , G01S15/897 , G10K11/345 , F02B2075/027 , G01N2291/2695
摘要： A linear transducer array for transmitting and receiving acoustic waves in both pulse-echo and holographic modes of operation. For pulse-echo acoustic imaging the array includes a linear subarray of transmitting transducer elements disposed in a plane along a longitudinal axis. Each transmitting element has an elongate shape and a principal axis that is perpendicular to the longitudinal axis of the array. For holographic imaging the apparatus further includes a removable mechanical shutter for blocking a predetermined portion of the principal axis of each of the transmitting elements so that a dispersive acoustic beam can be generated. The array also includes a linear subarray of receiving transducer elements coplanar with the transmitting subarray and disposed parallel to the longitudinal axis. The subarray of receiving elements is used to detect the reflected acoustic waves for both holographic and pulse-echo imaging.
摘要翻译： 线性换能器阵列，用于在脉冲回波和全息操作模式中发射和接收声波。 对于脉冲回波声学成像，该阵列包括发射沿着纵向轴线的平面中设置的换能器元件的线性子阵列。 每个发射元件具有细长形状和垂直于阵列的纵向轴线的主轴线。 对于全息成像，该装置还包括用于阻挡每个发送元件的主轴的预定部分的可移除的机械快门，使得可以产生分散声束。 阵列还包括接收与发射子阵列共面并且平行于纵向轴线设置的换能器元件的线性子阵列。 接收元件的子阵列用于检测全息和脉冲回波成像两者的反射声波。
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