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    System and method for zero intermediate frequency filtering of information communicated in wireless networks
    41.
    发明授权
    System and method for zero intermediate frequency filtering of information communicated in wireless networks 有权
    在无线网络中传送的信息的零中频滤波系统和方法

    公开(公告)号：US07881690B2

    公开(公告)日：2011-02-01

    申请号：US11399536

    申请日：2006-04-07

    申请人： Marc Dubois ,  Stephen Rayment ,  Andrew Keir ,  Kieran Parsons

    发明人： Marc Dubois ,  Stephen Rayment ,  Andrew Keir ,  Kieran Parsons

    IPC分类号： H04B1/10

    CPC分类号： H04B1/30

    摘要： A circuit for communicating information in a wireless network includes a filtering circuit in communication with a zero intermediate frequency (ZIF) transceiver circuit. The filtering circuit includes a first mixer in communication with an output of the ZIF transceiver circuit. The filtering circuit includes a first Surface Acoustic Wave (SAW) filter circuit in communication with an output of the first mixer. The filtering circuit includes a second mixer in communication with an output of the first SAW filter circuit. The filtering circuit includes a third mixer, and a second SAW filter circuit in communication with an output of the third mixer. The filtering circuit includes a fourth mixer in communication with an output of the second SAW filter circuit and an input of the ZIF transceiver circuit. The filtering circuit also includes a local oscillator circuit in communication with the first, second, third and fourth mixers.

    摘要翻译： 用于在无线网络中传送信息的电路包括与零中频（ZIF）收发器电路通信的滤波电路。 滤波电路包括与ZIF收发器电路的输出通信的第一混频器。 滤波电路包括与第一混频器的输出通信的第一表面声波（SAW）滤波器电路。 滤波电路包括与第一SAW滤波器电路的输出通信的第二混频器。 滤波电路包括第三混频器和与第三混频器的输出通信的第二SAW滤波器电路。 滤波电路包括与第二SAW滤波器电路的输出和ZIF收发器电路的输入通信的第四混频器。 滤波电路还包括与第一，第二，第三和第四混频器通信的本地振荡器电路。

    Method to characterize material using mathematical propagation models and ultrasonic signal
    42.
    发明授权
    Method to characterize material using mathematical propagation models and ultrasonic signal 有权
    使用数学传播模型和超声波信号来表征材料的方法

    公开(公告)号：US07480574B2

    公开(公告)日：2009-01-20

    申请号：US10975560

    申请日：2004-10-28

    申请人： Marc Dubois ,  Peter W. Lorraine ,  Robert J. Filkins

    发明人： Marc Dubois ,  Peter W. Lorraine ,  Robert J. Filkins

    IPC分类号： G06F19/00

    CPC分类号： G01N29/48 ,  G01N29/0645 ,  G01N29/2418 ,  G01N29/4418

    摘要： The invention is directed to a system and method for detecting defects in a manufactured object. These defects may include flaws, delaminations, voids, fractures, fissures, or cracks, among others. The system utilizes an ultrasound measurement system, a signal analyzer and an expected result. The signal analyzer compares the signal from the measurement system to the expected result. The analysis may detect a defect or measure an attribute of the manufactured object. Further, the analysis may be displayed or represented. In addition, the expected result may be generated from a model such as a wave propagation model. One embodiment of the invention is a laser ultrasound detection system in which a laser is used to generate an ultrasonic signal. The signal analyzer compares the measured ultrasonic signal to an expected result. This expected result is generated from a wave propagation model. The analysis is then displayed on a monitor.

    摘要翻译： 本发明涉及一种用于检测制造对象中的缺陷的系统和方法。 这些缺陷可能包括缺陷，分层，空隙，裂缝，裂缝或裂纹等。 该系统利用超声测量系统，信号分析仪和预期结果。 信号分析仪将来自测量系统的信号与预期结果进行比较。 分析可以检测缺陷或测量所制造的对象的属性。 此外，可以显示或表示分析。 此外，可以从诸如波传播模型的模型生成预期结果。 本发明的一个实施例是激光超声波检测系统，其中使用激光来产生超声波信号。 信号分析仪将测量的超声信号与预期结果进行比较。 该预期结果是从波传播模型产生的。 然后将分析显示在监视器上。

    LASER-ULTRASOUND INSPECTION USING INFRARED THERMOGRAPHY
    44.
    发明申请
    LASER-ULTRASOUND INSPECTION USING INFRARED THERMOGRAPHY 失效
    使用红外热像仪进行激光超声波检测

    公开(公告)号：US20080137105A1

    公开(公告)日：2008-06-12

    申请号：US11567405

    申请日：2006-12-06

    申请人： Donald Robert Howard ,  Harry Israel Ringermacher ,  Marc Dubois ,  Timothy Gerard Richter ,  Thomas E. Drake

    发明人： Donald Robert Howard ,  Harry Israel Ringermacher ,  Marc Dubois ,  Timothy Gerard Richter ,  Thomas E. Drake

    IPC分类号： G01B11/28

    CPC分类号： G01N29/2418 ,  G01N25/72 ,  G01N29/228 ,  G01N2291/0231 ,  G01N2291/02881

    摘要： An inspection system is provided to examine internal structures of a target material. This inspection system combines an ultrasonic inspection system and a thermographic inspection system. The thermographic inspection system is attached to ultrasonic inspection and modified to enable thermographic inspection of target materials at distances compatible with laser ultrasonic inspection. Quantitative information is obtained using depth infrared (IR) imaging on the target material. The IR imaging and laser-ultrasound results are combined and projected on a 3D projection of complex shape composites. The thermographic results complement the laser-ultrasound results and yield information about the target material's internal structure that is more complete and more reliable, especially when the target materials are thin composite parts.

    摘要翻译： 提供检查系统来检查目标材料的内部结构。 该检测系统结合了超声波检测系统和热成像检测系统。 热成像检测系统连接超声波检查，并进行了修改，以便在与激光超声波检测相匹配的距离内对目标材料进行热成像检测。 使用目标材料上的深度红外（IR）成像获得定量信息。 将IR成像和激光超声结果组合并投影在复合形状复合材料的3 D投影上。 热成像结果补充了激光超声结果，并产生了关于目标材料的内部结构的更完整和更可靠的信息，特别是当目标材料是薄的复合部件时。

    Method to characterize material using mathematical propagation models and ultrasonic signal
    46.
    发明申请
    Method to characterize material using mathematical propagation models and ultrasonic signal 有权
    使用数学传播模型和超声波信号来表征材料的方法

    公开(公告)号：US20050102109A1

    公开(公告)日：2005-05-12

    申请号：US10975560

    申请日：2004-10-28

    申请人： Marc Dubois ,  Peter Lorraine ,  Robert Filkins

    发明人： Marc Dubois ,  Peter Lorraine ,  Robert Filkins

    IPC分类号： G01N29/24 ,  G01N29/44 ,  G01N29/48 ,  G01B5/28

    CPC分类号： G01N29/48 ,  G01N29/0645 ,  G01N29/2418 ,  G01N29/4418

    摘要： The invention is directed to a system and method for detecting defects in a manufactured object. These defects may include flaws, delaminations, voids, fractures, fissures, or cracks, among others. The system utilizes an ultrasound measurement system, a signal analyzer and an expected result. The signal analyzer compares the signal from the measurement system to the expected result. The analysis may detect a defect or measure an attribute of the manufactured object. Further, the analysis may be displayed or represented. In addition, the expected result may be generated from a model such as a wave propagation model. One embodiment of the invention is a laser ultrasound detection system in which a laser is used to generate an ultrasonic signal. The signal analyzer compares the measured ultrasonic signal to an expected result. This expected result is generated from a wave propagation model. The analysis is then displayed on a monitor.

    摘要翻译： 本发明涉及一种用于检测制造对象中的缺陷的系统和方法。 这些缺陷可能包括缺陷，分层，空隙，裂缝，裂缝或裂纹等。 该系统利用超声测量系统，信号分析仪和预期结果。 信号分析仪将来自测量系统的信号与预期结果进行比较。 分析可以检测缺陷或测量所制造的对象的属性。 此外，可以显示或表示分析。 此外，可以从诸如波传播模型的模型生成预期结果。 本发明的一个实施例是激光超声波检测系统，其中使用激光来产生超声波信号。 信号分析仪将测量的超声信号与预期结果进行比较。 该预期结果是从波传播模型产生的。 然后将分析显示在监视器上。

    System and method for classification of defects in a manufactured object
    48.
    发明授权
    System and method for classification of defects in a manufactured object 有权
    制造对象中缺陷分类的系统和方法

    公开(公告)号：US06732587B2

    公开(公告)日：2004-05-11

    申请号：US10068255

    申请日：2002-02-06

    申请人： Peter W. Lorraine ,  Marc Dubois ,  Robert J. Filkins ,  Barbara Venchiarutti

    发明人： Peter W. Lorraine ,  Marc Dubois ,  Robert J. Filkins ,  Barbara Venchiarutti

    IPC分类号： G01N2904

    CPC分类号： G01N29/50 ,  G01N29/11 ,  G01N29/4436 ,  G01N29/48 ,  G01N2291/0231 ,  G01N2291/0427 ,  G01N2291/044

    摘要： Ultrasonic testing techniques may involve the measurement of ultrasonic waves from the tested part. These waves may reflect from surfaces of various layers within the part. Further, these waves may reflect from faults, defects, voids, fractures, and others. As such, the measured ultrasonic wave is a complex mix of these reflections. One method for detecting flaws, defects, and others may be to express the signal in terms of a set of basis functions. These functions may be summed to produce the measured signal. Further, basis functions may be chosen such that a select set of the basis functions characterize the fault and/or defect. In one exemplary embodiment, the coefficients associated with the basis function may be non-zero when a defect is present. As such, a defect may be detected quickly and automatically.

    摘要翻译： 超声波测试技术可能涉及从测试部分测量超声波。 这些波可能从部分内各层的表面反射出来。 此外，这些波浪可以从故障，缺陷，空隙，裂缝等反映。 因此，测量的超声波是这些反射的复杂混合。 用于检测缺陷，缺陷等的一种方法可以是基于一组基函数来表达信号。 这些功能可以相加以产生测量信号。 此外，可以选择基础功能，使得基础功能的选择集表征故障和/或缺陷。 在一个示例性实施例中，当存在缺陷时，与基础函数相关联的系数可以是非零。 因此，可以快速且自动地检测到缺陷。