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    Methods and apparatus for high-resolution continuous scan imaging using vold-kalman filtering
    2.
    发明授权
    Methods and apparatus for high-resolution continuous scan imaging using vold-kalman filtering 有权
    使用vold-kalman滤波的高分辨率连续扫描成像的方法和装置

    公开(公告)号：US09482644B2

    公开(公告)日：2016-11-01

    申请号：US14470797

    申请日：2014-08-27

    申请人： ATA Engineering, Inc.

    发明人： Havard I. Vold ,  Parthiv N. Shah

    IPC分类号： G01N29/00 ,  G01N29/06 ,  G03H3/00 ,  G03H1/04

    CPC分类号： G01N29/0663 ,  G03H1/0443 ,  G03H3/00

    摘要： A method of imaging a test subject includes providing one or more moveable sensors to sense an attribute of the test subject (e.g., acoustic pressure), wherein the attribute has a tonal noise component and a broadband noise component. A rotational sensor is provided to sense a rotational velocity of a rotational element of the test subject. Each of the moveable sensors are moved along a path while continuously acquiring test data that is indicative of the rotational velocity of the rotational element, the sensed attribute, the position, and the orientation of each of the moveable sensors. A set of transfer functions corresponding to points in space that have been visited by the moveable sensors are constructed, each of the transfer functions relating the test data of the moveable sensors to the test data of the rotational sensor. A visual representation of the tonal noise component of the attribute in a region adjacent the test subject is produced using the set of transfer functions.

    摘要翻译： 成像测试对象的方法包括提供一个或多个可移动传感器以感测测试对象的属性（例如，声压），其中该属性具有音调噪声分量和宽带噪声分量。 提供旋转传感器以感测测试对象的旋转元件的旋转速度。 每个可移动传感器沿着路径移动，同时连续地获取指示旋转元件的旋转速度，感测的属性，位置以及每个可移动传感器的取向的测试数据。 构成与可移动传感器访问的对应于空间中的点的一组传递函数，每个传递函数将可移动传感器的测试数据与旋转传感器的测试数据相关联。 使用一组传递函数产生与测试对象相邻的区域中的属性的音调噪声分量的视觉表示。

    ACOUSTICAL HOLOGRAPHY WITH MULTI-LEVEL SQUARE WAVE EXCITATION SIGNALS
    3.
    发明申请
    ACOUSTICAL HOLOGRAPHY WITH MULTI-LEVEL SQUARE WAVE EXCITATION SIGNALS 有权
    具有多级平方波激发信号的声学全息图

    公开(公告)号：US20150078125A1

    公开(公告)日：2015-03-19

    申请号：US14029426

    申请日：2013-09-17

    申请人： General Electric Company

    发明人： Stephan Falter ,  James Norman Barshinger ,  Dirk Lange ,  Mark Howard Feydo ,  Werner Lammerich

    IPC分类号： G03H3/00 ,  G01S7/523

    CPC分类号： G03H3/00 ,  G01N29/0663 ,  G01N29/348 ,  G01S7/523

    摘要： Systems and methods are disclosed herein in which multi-level square wave excitation signals are used instead of or in addition to fully-analog excitation signals to drive an array of transceiver elements to create a sound field. Use of multi-level square wave excitation signals produces acceptable transceiver output with reduced complexity, cost, and/or power consumption as compared with use of fully-analog excitation signals. In addition, use of such signals facilitates system implementation using application-specific integrated circuits (ASICs) and is not as restricted in voltage level and speed. At the same time, the benefits and applications of fully-analog excitation signals (e.g., acoustic holography, beam superposition, signal-to-noise ratio (SNR) improvements, suppression of parasitic modes, increased material penetration, potential for coded pulsing algorithms and suppression of side lobes in ultrasonic field) can still be achieved with multi-level square wave excitation signals.

    摘要翻译： 本文公开了系统和方法，其中使用多电平方波激励信号来代替或除了全模拟激励信号以驱动收发器元件阵列以产生声场。 与使用全模拟激励信号相比，多级方波激励信号的使用产生可接收的收发器输出，降低了复杂性，成本和/或功耗。 此外，这种信号的使用有利于使用专用集成电路（ASIC）的系统实现，并且在电压电平和速度方面不受限制。 同时，全模拟激励信号的优点和应用（例如声全息，光束叠加，信噪比（SNR）改善，寄生模式抑制，材料渗透增加，编码脉冲算法的潜力和 在超声场中抑制旁瓣）仍然可以通过多级方波激励信号来实现。

    Acoustically generated images having selected components
    6.
    发明申请
    Acoustically generated images having selected components 有权
    具有选定部件的声学产生的图像

    公开(公告)号：US20020045819A1

    公开(公告)日：2002-04-18

    申请号：US09982209

    申请日：2001-10-17

    申请人： Advanced Diagnostics, Inc.

    发明人： George F. Garlick

    IPC分类号： A61B008/00

    CPC分类号： G03H3/00 ,  A61B8/0825 ,  G01N29/0663 ,  G01S15/897

    摘要： An acoustically generated image includes only selected acoustical components. When an original acoustic signal interacts with an object, the resultant acoustic signal comprises a diffracted component and an undiffracted component. The acoustical images of the present invention are generated with either the diffracted component only or the undiffracted component only. In an alternative embodiment, the acoustically generated image may comprise selected frequency component(s) from the diffracted component of the acoustic signal.

    摘要翻译： 声学产生的图像仅包括选定的声学分量。 当原始声信号与对象相互作用时，所得到的声信号包括衍射分量和未衍射分量。 本发明的声学图像仅用衍射分量或非衍射分量产生。 在替代实施例中，声学产生的图像可以包括来自声信号的衍射分量的选定频率分量。

    Motion acoustic holograph
    7.
    发明授权
    Motion acoustic holograph 失效
    运动声全息图

    公开(公告)号：US5627319A

    公开(公告)日：1997-05-06

    申请号：US599802

    申请日：1996-02-12

    申请人： Ronald J. Greene

    发明人： Ronald J. Greene

    IPC分类号： G01N29/06 ,  G03H3/00 ,  G01N29/22 ,  G03B42/06

    CPC分类号： G01N29/0663 ,  G03H3/00

    摘要： A new method of Acoustic Holography permits moving 3-D scenes by replacing a fixed film record of an interference pattern with a "live interference pattern" which is continuously altered by the information on a rotating CD.

    摘要翻译： 一种新的声全息方法允许通过用旋转CD上的信息连续改变的“活动干涉图案”来替换干涉图案的固定胶片记录来移动三维场景。

    Acoustic holography process and apparatus using a space-limited ultrasonic beam
    8.
    发明授权
    Acoustic holography process and apparatus using a space-limited ultrasonic beam 失效
    使用空间有限的超声波束的声全息技术和装置

    公开(公告)号：US4631965A

    公开(公告)日：1986-12-30

    申请号：US602367

    申请日：1984-04-20

    申请人： Daniel De Vadder ,  Robert Saglio

    发明人： Daniel De Vadder ,  Robert Saglio

    IPC分类号： G03H3/00 ,  G01N29/06 ,  G01S15/89 ,  G01N29/04

    CPC分类号： G01N29/0663 ,  G01N29/069 ,  G01S15/897 ,  G03H3/00

    摘要： The fault-containing area to be inspected is insonified by means of an ultrasonic transducer with a space-limited beam which is displaced in stepwise manner, the signals coming from the successively insonified areas being detected by several receivers, the phases and amplitudes of the signals being determined and the reconstitution of the area to be inspected performed. There is a main image of the fault and also parasitic images thereof. The number of receivers is chosen in such a way that the distance between the parasitic images and the main image exceeds the width of the area insonified by the transmitter and the reconstitution is only carried out in the insonified areas having given rise to a signal in order to eliminate the parasitic images. Application to the non-destructive inspection of mechanical parts.

    摘要翻译： 要检查的含故障区域通过具有间隔偏移的空间受限的束的超声波换能器来进行增强，这些超声波换能器以逐步的方式移位，来自连续增强区域的信号由几个接收器检测，信号的相位和幅度 被确定并重新组建待检查的地区。 存在故障的主要图像以及其寄生图像。 接收机的数量被选择为使得寄生图像和主图像之间的距离超过由发射机增强的区域的宽度，并且重建仅在已经产生信号的补音区域中进行 以消除寄生图像。 应用于机械零件的无损检测。

    Hybrid holographic non-destructive test system
    9.
    发明授权
    Hybrid holographic non-destructive test system 失效
    混合全息无损检测系统

    公开(公告)号：US4093382A

    公开(公告)日：1978-06-06

    申请号：US686331

    申请日：1976-05-14

    申请人： Robert L. Kurtz

    发明人： Robert L. Kurtz

    IPC分类号： G03H1/00 ,  G01H9/00 ,  G01N21/88 ,  G01N29/06 ,  G01S15/89 ,  G03H3/00 ,  G01N21/00 ,  G01N3/00 ,  G02B27/00

    CPC分类号： G01N29/0663 ,  G01H9/002 ,  G01N21/88 ,  G01S15/8972 ,  G01N2291/2697 ,  Y10S359/901

    摘要： An automatic hybrid holograhic non-destructive testing (HNDT) method and system capable of detecting flaws or debonds contained within certain materials. This system incorporates the techniques of optical holography, acoustical/optical holography and holographic correlation in determining the structural integrity of a test object. An automatic processing system including a detector and automatic data processor is used in conjunction with the three holographic techniques for correlating and interpreting the information supplied by the non-destructive systems. The automatic system also includes a sensor which directly translates an optical data format produced by the holographic techniques into electrical signals and then transmits this information to a digital computer for indicating the structural properties of the test object. The computer interprets the data gathered and determining whether further testing is necessary, as well as the format of this new testing procedure.

    摘要翻译： 一种自动混合全息无损检测（HNDT）方法和系统，能够检测某些材料中所含的缺陷或脱落。 该系统在确定测试对象的结构完整性时结合了光学全息技术，声学/光学全息术和全息相关技术。 结合三种全息技术将包括检测器和自动数据处理器的自动处理系统用于相关和解释由非破坏性系统提供的信息。 自动系统还包括传感器，其将由全息技术产生的光学数据格式直接转换为电信号，然后将该信息发送到数字计算机，以指示测试对象的结构特性。 计算机解释所收集的数据，并确定是否需要进一步测试，以及此新测试程序的格式。

    Acoustical holography imaging device
    10.
    发明授权
    Acoustical holography imaging device 失效
    声全息成像装置

    公开(公告)号：US3990296A

    公开(公告)日：1976-11-09

    申请号：US539316

    申请日：1975-01-08

    申请人： Kenneth R. Erikson

    发明人： Kenneth R. Erikson

    IPC分类号： A61B8/08 ,  G01N29/06 ,  G01S15/89 ,  G01N29/04

    CPC分类号： G01N29/0663 ,  A61B8/0866 ,  G01S15/8972 ,  G01N2291/02827

    摘要： An acoustical imaging system wherein an acoustic beam projected through a transmission medium is modified (scattered) by a subject therein and impinges upon one side of an acousto-optic interface. The other side of this interface is made concave and mirror-surfaced to reflect an illuminating laser beam. The acousto-optic interface is "composite," being fabricated from an epoxy matrix with a multitude of tiny spherular capsules, or "microballons" distributed therein to thereby match the acoustic impedance of this interface to that of the transmission medium.

    摘要翻译： 一种声学成像系统，其中通过传输介质投射的声束由其中的被摄体修改（散射）并撞击声光接口的一侧。 该接口的另一侧被制成凹面和镜面以反射照明激光束。 声光接口是“复合”，由具有多个微小球形胶囊的环氧基体或分布在其中的“微球”制成，从而将该界面的声阻抗与传输介质的声阻抗相匹配。