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    METHOD AND DEVICE FOR PROCESSING MAGNETOSTRICTIVE GUIDED WAVE DETECTION SIGNALS
    1.
    发明申请
    METHOD AND DEVICE FOR PROCESSING MAGNETOSTRICTIVE GUIDED WAVE DETECTION SIGNALS 审中-公开
    用于处理磁导引导波检测信号的方法和装置

    公开(公告)号：US20150177294A1

    公开(公告)日：2015-06-25

    申请号：US14538787

    申请日：2014-11-11

    申请人： Huazhong University of Science and Technology

    发明人： Xinjun WU ,  Mingxi TANG ,  Pengfei SUN

    IPC分类号： G01R21/133 ,  G01M99/00

    CPC分类号： G01R21/133 ,  G01M99/00 ,  G01N27/82 ,  G01N29/2412 ,  G01N29/42 ,  G01N29/4463 ,  G01N29/4472 ,  G01N29/52 ,  G01N2291/0425

    摘要： A method for processing magnetostrictive guided wave detection signals, including: 1) obtaining an analysis signal by capturing an original magnetostrictive guided wave detection signal; 2) performing band-pass filtering on the analysis signal to obtain a signal, and initializing i to 0; 3) obtaining a group of signals x(i), x(i+1), . . . , x(i+M−1) using a rectangular window with a width of M; 4) forming a matrix A; 5) performing singular value decomposition on the matrix A to obtain a singular matrix B; 6) setting eigenvalues in the matrix B smaller than the median to 0 to obtain a matrix C, and performing inverse singular value transformation on the matrix C to obtain a matrix D; 7) recovering a group of processed signals from the matrix D and calculating energy z of the group of processed signals; and 8) setting i to (i+1) and repeating steps 3)-7) until i=N+1−M.

    摘要翻译： 一种用于处理磁致伸缩导波检测信号的方法，包括：1）通过捕获原始的磁致伸缩导波检测信号获得分析信号; 2）对分析信号进行带通滤波以获得信号，并将i初始化为0; 3）获得一组信号x（i），x（i + 1），。 。 。 ，使用宽度为M的矩形窗口的x（i + M-1） 4）形成矩阵A; 5）对矩阵A进行奇异值分解，得到奇异矩阵B; 6）将矩阵B中的特征值设置为小于0，得到矩阵C，对矩阵C进行逆奇异值变换，得到矩阵D; 7）从矩阵D中恢复一组经处理的信号，并计算处理信号组的能量z; 和8）将i设置为（i + 1）并重复步骤3）-7），直到i = N + 1-M。

    Measuring anisotropic mechanical properties of thin films
    4.
    发明授权
    Measuring anisotropic mechanical properties of thin films 失效
    测量薄膜的各向异性机械性能

    公开(公告)号：US5672830A

    公开(公告)日：1997-09-30

    申请号：US763873

    申请日：1996-12-11

    申请人： John A. Rogers ,  Keith A. Nelson ,  Lisa Dhar

    发明人： John A. Rogers ,  Keith A. Nelson ,  Lisa Dhar

    IPC分类号： G01N29/24 ,  G01N29/52 ,  G01N29/18

    CPC分类号： G01N29/52 ,  G01N29/2418 ,  G01N2291/011 ,  G01N2291/012 ,  G01N2291/0237 ,  G01N2291/0422

    摘要： Anisotropic mechanical properties of thin films are measured by exciting time-dependent waveguide acoustic modes in the thin film sample with a pair of excitation pulses from an excitation laser. The waveguide acoustic modes are then optically detected by diffracting a probe laser beam off the excited modes. The probe beam is detected to generate an electronic signal. The anisotropic moduli and related properties in the film are determined by analyzing the electronic signal using a mathematical inversion procedure.

    摘要翻译： 利用激发激光器的一对激发脉冲，通过激发薄膜样品中的时间依赖波导声模来测量薄膜的各向异性机械性能。 然后通过将探针激光束衍射离开激发模式来光学检测波导声模式。 检测探测光束以产生电子信号。 通过使用数学反演程序分析电子信号来确定膜中的各向异性模量和相关性质。

    Method and System for Examining the Interior Material of an Object, Such as a Pipeline or a Human Body, From a Surface of the Object Using Ultrasound
    6.
    发明申请
    Method and System for Examining the Interior Material of an Object, Such as a Pipeline or a Human Body, From a Surface of the Object Using Ultrasound 审中-公开
    使用超声波检查物体表面的对象（如管道或人体）的内部材料的方法和系统

    公开(公告)号：US20160334372A1

    公开(公告)日：2016-11-17

    申请号：US14991013

    申请日：2016-01-08

    申请人： Rontgen Technische Dienst B.V.

    发明人： Marcel Meijlom Molenaar ,  Steven Ferdinand Kleijer

    IPC分类号： G01N29/06 ,  A61B8/08

    CPC分类号： G01N29/069 ,  A61B8/00 ,  A61B8/5207 ,  G01N29/262 ,  G01N29/36 ,  G01N29/4472 ,  G01N29/52 ,  G01N2291/106 ,  G01S15/8915 ,  G03B42/06

    摘要： A method and system are described for examining the interior material of an object from a surface of an object using ultrasound having a frequency of at least 100 kHz. The method comprises the step of transmitting at least a first ultrasound signal by a first ultrasound transmitter of a first number of ultrasound transmitters to the interior material of the object for forming a first image in order to determine, according for example to the principle of inverse wave field extrapolation, where in the interior material of the object reflections and/or diffractions occur. Reflections and/or diffractions of the first ultrasound signal from the interior material of the object are received using a second number of ultrasound receivers which are acoustically coupled to the surface of the object at positions which are distributed in at least one dimension of the surface of the object. With each of the second number of ultrasound receivers, a receiving signal is generated from the received reflections and/or diffractions of the first ultrasound signal from the interior material of the object, and each of the receiving signals generated by one of the ultrasound receivers is processed separately into a separate dataset. The separate datasets of all the ultrasound receivers are combined to the first image.

    摘要翻译： 描述了一种用于使用具有至少100kHz的频率的超声检查物体表面的物体的内部材料的方法和系统。 该方法包括以下步骤：由第一数量的超声发射器的第一超声波发射器将至少第一超声波信号发射到物体的内部材料，以形成第一图像，以便例如根据反相原理确定 波场外推，其中发生物体反射和/或衍射的内部材料。 使用第二数量的超声波接收器来接收来自物体的内部材料的第一超声信号的反射和/或衍射，所述第二数量的超声波接收器在被分布在物体表面的至少一个维度上的位置声学耦合到物体的表面 物体。 对于第二数量的超声波接收器中的每一个，从物体的内部材料接收的反射和/或衍射第一超声信号产生接收信号，并且由超声波接收器之一产生的每个接收信号是 分别处理为单独的数据集。 所有超声波接收机的单独数据集合到第一个图像。

    Acoustic detection of stress-induced mechanical damage in a borehole wall
    9.
    发明授权
    Acoustic detection of stress-induced mechanical damage in a borehole wall 有权
    井眼中应力引起的机械损伤的声学检测

    公开(公告)号：US06510389B1

    公开(公告)日：2003-01-21

    申请号：US09513602

    申请日：2000-02-25

    申请人： Kenneth W. Winkler ,  Thomas J. Plona ,  Bikash Sinha ,  Ralph M. D'Angelo ,  Lawrence McGowan

    发明人： Kenneth W. Winkler ,  Thomas J. Plona ,  Bikash Sinha ,  Ralph M. D'Angelo ,  Lawrence McGowan

    IPC分类号： G01V128

    CPC分类号： G01N29/48 ,  G01N29/07 ,  G01N29/11 ,  G01N29/52 ,  G01N2291/2636 ,  G01V1/50

    摘要： A method provides for locating and measuring mechanical damage in rock surrounding a borehole by detecting one or both of reductions in ultrasonic compressional wave velocity in the rock as a function of azimuth, and by detecting focused acoustic energy in the rock from local increases in ultrasonic compressional wave amplitude resulting from velocity gradients. A first preferred embodiment uses a combination of azimuthal ultrasonic compressional wave velocity data and azimuthal ultrasonic compressional wave energy data. A second embodiment uses azimuthal ultrasonic compressional wave velocity data and omni-directional sonic velocity data, with a comparison test or a curve fitting test. A third embodiment uses azimuthal ultrasonic compressional wave energy data.

    摘要翻译： 一种方法通过检测岩石中的超声波压缩波速度的减小之一或两者作为方位的函数来定位和测量围绕钻孔的岩石中的机械损伤，并且通过从超声压缩的局部增加中检测岩石中的聚焦声能 波幅由速度梯度引起。 第一优选实施例使用方位超声压缩波速度数据和方位超声波压缩波能量数据的组合。 第二实施例使用方位超声波压缩波速度数据和全向声速数据，进行比较测试或曲线拟合测试。 第三实施例使用方位超声压缩波能数据。

    Method and system for processing laser vibrometry data employing bayesian statistical processing techniques
    10.
    发明申请
    Method and system for processing laser vibrometry data employing bayesian statistical processing techniques 失效
    使用贝叶斯统计处理技术处理激光波幅测量数据的方法和系统

    公开(公告)号：US20030010128A1

    公开(公告)日：2003-01-16

    申请号：US09841045

    申请日：2001-04-23

    发明人： Walter F. Buell ,  Bradley A. Shadwick

    IPC分类号： G01N029/04 ,  G01B009/02

    CPC分类号： G01N29/52 ,  G01H9/00 ,  G01N29/2418 ,  G01N29/4472 ,  G01N29/449

    摘要： A method and system for processing laser vibrometry data are embodied in a processor configured to employ a statistical signal processing technique (e.g., a Bayesian processing technique) to process one or more mathematical models, laser vibrometry data for a system under observation, and prior information to generate estimates of parameters for the one or more mathematical models.

    摘要翻译： 用于处理激光振动测定数据的方法和系统体现在处理器中，该处理器被配置为采用统计信号处理技术（例如，贝叶斯处理技术）来处理一个或多个数学模型，用于观察系统的激光振动测量数据和先前信息 以产生用于一个或多个数学模型的参数的估计。