公开(公告)号：US07817076B2

公开(公告)日：2010-10-19

申请号：US12192369

申请日：2008-08-15

申请人： Michael Drummy ,  Andrew Thomas ,  Denys Laquerre ,  David Larochelle ,  Pierre Langlois ,  Steven Besser

发明人： Michael Drummy ,  Andrew Thomas ,  Denys Laquerre ,  David Larochelle ,  Pierre Langlois ,  Steven Besser

IPC分类号： H03M1/12

CPC分类号： G01R19/2509 ,  G01N29/262 ,  G01N29/44

摘要： A multiple mode digitization system for a non-destructive inspection instrument which makes use of a multiplexing circuit and a single set of analog to digital converters to efficiently digitize analog test signals from a plurality of inputs. In the preferred embodiment, each of the analog to digital converters in the system is driven with an independent and separate clock signal, allowing for propagation delay compensation among the plurality of test signals as well as interleaved sampling such that custom sampling rates can be used for each input without the need for more than one clock frequency. In an alternate embodiment, phase adjustments on the sampling clocks are used only for interleave sampling, and digital filters are used to provide signal propagation delay compensation.

摘要翻译： 一种用于非破坏性检查仪器的多模式数字化系统，其利用多路复用电路和单组模数转换器来有效地数字化来自多个输入的模拟测试信号。 在优选实施例中，系统中的每个模数转换器都用独立和分离的时钟信号驱动，允许多个测试信号之间的传播延迟补偿以及交错采样，使得定制采样速率可用于 每个输入不需要多于一个时钟频率。 在替代实施例中，采样时钟上的相位调整仅用于交织采样，并且使用数字滤波器来提供信号传播延迟补偿。

公开(公告)号：US20110100089A1

公开(公告)日：2011-05-05

申请号：US12981228

申请日：2010-12-29

申请人： Pierre Langlois ,  Michael Drummy

发明人： Pierre Langlois ,  Michael Drummy

IPC分类号： G01N29/04 ,  G01M99/00

CPC分类号： G01N29/262 ,  G01N29/0609 ,  G01N29/0645 ,  G01N2291/02491 ,  G01N2291/044 ,  G01N2291/106 ,  G10K11/346

摘要： The present invention relates to a method of detecting non-linear operation of a measuring device comprising an array of transducers and at least one receiver channel portion. The method comprises receiving measured signals through transducers of the array, processing the measured signals from the transducers through the receiver channel portion, combining the processed measured signals to produce a combined measurement signal, and detecting non-linearity of the combined measurement signal and non-linear operation of the measuring device by detecting saturation of the receiver channel portion. In one embodiment, the receiver channel portion comprises an analog-to-digital converter, a threshold is assigned to a digital output of the analog-to-digital converter, and saturation of the receiver channel portion is detected when the digital output of the analog-to-digital converter oversteps the assigned threshold. In one application of the invention, the measuring device is a non-destructive testing device.

公开(公告)号：US20070034010A1

公开(公告)日：2007-02-15

申请号：US11354221

申请日：2006-02-14

申请人： Pierre Langlois ,  Michael Drummy

发明人： Pierre Langlois ,  Michael Drummy

IPC分类号： G01N29/04

CPC分类号： G01N29/262 ,  G01N29/0609 ,  G01N29/0645 ,  G01N2291/02491 ,  G01N2291/044 ,  G01N2291/106 ,  G10K11/346

摘要： The present invention relates to a method of detecting non-linear operation of a measuring device comprising an array of transducers and at least one receiver channel portion. The method comprises receiving measured signals through transducers of the array, processing the measured signals from the transducers through the receiver channel portion, combining the processed measured signals to produce a combined measurement signal, and detecting non-linearity of the combined measurement signal and non-linear operation of the measuring device by detecting saturation of the receiver channel portion. In one embodiment, the receiver channel portion comprises an analog-to-digital converter, a threshold is assigned to a digital output of the analog-to-digital converter, and saturation of the receiver channel portion is detected when the digital output of the analog-to-digital converter oversteps the assigned threshold. In one application of the invention, the measuring device is a non-destructive testing device.

摘要翻译： 本发明涉及一种检测包括一组换能器和至少一个接收器通道部分的测量装置的非线性操作的方法。 该方法包括通过阵列的换能器接收测量信号，通过接收器通道部分处理来自换能器的测量信号，组合经处理的测量信号以产生组合的测量信号，以及检测组合测量信号和非组合测量信号的非线性， 通过检测接收机通道部分的饱和度来测量设备的线性操作。 在一个实施例中，接收器通道部分包括模数转换器，阈值被分配给模数转换器的数字输出，并且当模拟数字输出的数字输出被检测到接收器通道部分的饱和 数字转换器超过分配的阈值。 在本发明的一个应用中，测量装置是无损检测装置。

公开(公告)号：US08904872B2

公开(公告)日：2014-12-09

申请号：US12981228

申请日：2010-12-29

申请人： Pierre Langlois ,  Michael Drummy

发明人： Pierre Langlois ,  Michael Drummy

IPC分类号： G01N29/26 ,  G01N29/44 ,  G01N29/04 ,  G01N29/06 ,  G10K11/34

CPC分类号： G01N29/262 ,  G01N29/0609 ,  G01N29/0645 ,  G01N2291/02491 ,  G01N2291/044 ,  G01N2291/106 ,  G10K11/346

摘要： The present invention relates to a method of detecting non-linear operation of a measuring device comprising an array of transducers and at least one receiver channel portion. The method comprises receiving measured signals through transducers of the array, processing the measured signals from the transducers through the receiver channel portion, combining the processed measured signals to produce a combined measurement signal, and detecting non-linearity of the combined measurement signal and non-linear operation of the measuring device by detecting saturation of the receiver channel portion. In one embodiment, the receiver channel portion comprises an analog-to-digital converter, a threshold is assigned to a digital output of the analog-to-digital converter, and saturation of the receiver channel portion is detected when the digital output of the analog-to-digital converter oversteps the assigned threshold. In one application of the invention, the measuring device is a non-destructive testing device.

摘要翻译： 本发明涉及一种检测包括一组换能器和至少一个接收器通道部分的测量装置的非线性操作的方法。 该方法包括通过阵列的换能器接收测量信号，通过接收器通道部分处理来自换能器的测量信号，组合经处理的测量信号以产生组合的测量信号，以及检测组合测量信号和非组合测量信号的非线性， 通过检测接收机通道部分的饱和度来测量设备的线性操作。 在一个实施例中，接收器通道部分包括模数转换器，阈值被分配给模数转换器的数字输出，并且当模拟数字输出的数字输出被检测到接收器通道部分的饱和 数字转换器超过分配的阈值。 在本发明的一个应用中，测量装置是无损检测装置。

公开(公告)号：US08371151B2

公开(公告)日：2013-02-12

申请号：US12981049

申请日：2010-12-29

申请人： Pierre Langlois ,  Michael Drummy

发明人： Pierre Langlois ,  Michael Drummy

IPC分类号： G01N29/30 ,  G01N29/04 ,  G01N29/44 ,  G01D21/00 ,  G06F17/00

CPC分类号： G01N29/262 ,  G01N29/0609 ,  G01N29/0645 ,  G01N2291/02491 ,  G01N2291/044 ,  G01N2291/106 ,  G10K11/346

摘要： The present invention relates to a method of detecting non-linear operation of a measuring device comprising an array of transducers and at least one receiver channel portion. The method comprises receiving measured signals through transducers of the array, processing the measured signals from the transducers through the receiver channel portion, combining the processed measured signals to produce a combined measurement signal, and detecting non-linearity of the combined measurement signal and non-linear operation of the measuring device by detecting saturation of the receiver channel portion. In one embodiment, the receiver channel portion comprises an analog-to-digital converter, a threshold is assigned to a digital output of the analog-to-digital converter, and saturation of the receiver channel portion is detected when the digital output of the analog-to-digital converter oversteps the assigned threshold. In one application of the invention, the measuring device is a non-destructive testing device.

摘要翻译： 本发明涉及一种检测包括一组换能器和至少一个接收器通道部分的测量装置的非线性操作的方法。 该方法包括通过阵列的换能器接收测量信号，通过接收器通道部分处理来自换能器的测量信号，组合经处理的测量信号以产生组合的测量信号，以及检测组合测量信号和非组合测量信号的非线性， 通过检测接收机通道部分的饱和度来测量设备的线性操作。 在一个实施例中，接收器通道部分包括模数转换器，阈值被分配给模数转换器的数字输出，并且当模拟数字输出的数字输出被检测到接收器通道部分的饱和 数字转换器超过分配的阈值。 在本发明的一个应用中，测量装置是无损检测装置。

公开(公告)号：US20110094304A1

公开(公告)日：2011-04-28

申请号：US12981049

申请日：2010-12-29

申请人： Pierre Langlois ,  Michael Drummy

发明人： Pierre Langlois ,  Michael Drummy

IPC分类号： G01N29/04

CPC分类号： G01N29/262 ,  G01N29/0609 ,  G01N29/0645 ,  G01N2291/02491 ,  G01N2291/044 ,  G01N2291/106 ,  G10K11/346

摘要： The present invention relates to a method of detecting non-linear operation of a measuring device comprising an array of transducers and at least one receiver channel portion. The method comprises receiving measured signals through transducers of the array, processing the measured signals from the transducers through the receiver channel portion, combining the processed measured signals to produce a combined measurement signal, and detecting non-linearity of the combined measurement signal and non-linear operation of the measuring device by detecting saturation of the receiver channel portion. In one embodiment, the receiver channel portion comprises an analog-to-digital converter, a threshold is assigned to a digital output of the analog-to-digital converter, and saturation of the receiver channel portion is detected when the digital output of the analog-to-digital converter oversteps the assigned threshold. In one application of the invention, the measuring device is a non-destructive testing device.

摘要翻译： 本发明涉及一种检测包括一组换能器和至少一个接收器通道部分的测量装置的非线性操作的方法。 该方法包括通过阵列的换能器接收测量信号，通过接收器通道部分处理来自换能器的测量信号，组合经处理的测量信号以产生组合的测量信号，以及检测组合测量信号和非组合测量信号的非线性， 通过检测接收机通道部分的饱和度来测量设备的线性操作。 在一个实施例中，接收器通道部分包括模数转换器，阈值被分配给模数转换器的数字输出，并且当模拟数字输出的数字输出被检测到接收器通道部分的饱和 数字转换器超过分配的阈值。 在本发明的一个应用中，测量装置是无损检测装置。

公开(公告)号：US20090091318A1

公开(公告)日：2009-04-09

申请号：US12206798

申请日：2008-09-09

申请人： Benoit Lepage ,  Pierre Langlois ,  Michael Drummy

发明人： Benoit Lepage ,  Pierre Langlois ,  Michael Drummy

IPC分类号： G01N27/90

CPC分类号： G01N27/9013

摘要： A phased scanning method and phased scan eddy current array probe suitable for in-situ eddy current inspection of a structure without mechanical scanning. Overlapping subsets of the sensor elements within the array probe are dynamically connected in series and sequentially scanned to simulate the mechanical motion of a conventional array probe along a test surface. An algorithm to effectively balance the scan data is provided which comprises obtaining a reference scan at the time of probe installation, storing the measurement data from this reference scan in a memory device located within the probe, subtracting this reference curve from the curve obtained by all subsequent measurement scans to produce an adjusted curve, and processing the resulting adjusted curve through a high pass filter. A technique for verifying sensor elements of an eddy current array probe after permanent or semi-permanent installation against a test structure is also provided.

摘要翻译： 相位扫描方法和定相扫描涡流阵列探头，适用于没有机械扫描的结构的原位涡流检测。 阵列探头内的传感器元件的重叠子集被动态地串联并顺序扫描，以模拟常规阵列探针沿测试表面的机械运动。 提供了一种有效平衡扫描数据的算法，其中包括在探头安装时获取参考扫描，将来自该参考扫描的测量数据存储在位于探头内的存储器件中，从由所有检测器获得的曲线中减去该参考曲线 随后的测量扫描以产生调整曲线，并通过高通滤波器处理所得到的调整曲线。 还提供了用于在针对测试结构进行永久或半永久性安装之后验证涡流阵列探针的传感器元件的技术。

公开(公告)号：US07958769B2

公开(公告)日：2011-06-14

申请号：US11354221

申请日：2006-02-14

申请人： Pierre Langlois ,  Michael Drummy

发明人： Pierre Langlois ,  Michael Drummy

IPC分类号： G01N29/30 ,  G01N29/04 ,  G01N29/44 ,  G01D21/00 ,  G06F17/00

CPC分类号： G01N29/262 ,  G01N29/0609 ,  G01N29/0645 ,  G01N2291/02491 ,  G01N2291/044 ,  G01N2291/106 ,  G10K11/346

摘要： The present invention relates to a method of detecting non-linear operation of a measuring device comprising an array of transducers and at least one receiver channel portion. The method comprises receiving measured signals through transducers of the array, processing the measured signals from the transducers through the receiver channel portion, combining the processed measured signals to produce a combined measurement signal, and detecting non-linearity of the combined measurement signal and non-linear operation of the measuring device by detecting saturation of the receiver channel portion. In one embodiment, the receiver channel portion comprises an analog-to-digital converter, a threshold is assigned to a digital output of the analog-to-digital converter, and saturation of the receiver channel portion is detected when the digital output of the analog-to-digital converter oversteps the assigned threshold. In one application of the invention, the measuring device is a non-destructive testing device.

摘要翻译： 本发明涉及一种检测包括一组换能器和至少一个接收器通道部分的测量装置的非线性操作的方法。 该方法包括通过阵列的换能器接收测量信号，通过接收器通道部分处理来自换能器的测量信号，组合经处理的测量信号以产生组合的测量信号，以及检测组合测量信号和非组合测量信号的非线性， 通过检测接收机通道部分的饱和度来测量设备的线性操作。 在一个实施例中，接收器通道部分包括模数转换器，阈值被分配给模数转换器的数字输出，并且当模拟数字输出的数字输出被检测到接收器通道部分的饱和 数字转换器超过分配的阈值。 在本发明的一个应用中，测量装置是无损检测装置。

公开(公告)号：US20090303064A1

公开(公告)日：2009-12-10

申请号：US12477346

申请日：2009-06-03

申请人： Steven Abe LaBreck ,  Paul Joseph DeAngelo ,  Michael Drummy

发明人： Steven Abe LaBreck ,  Paul Joseph DeAngelo ,  Michael Drummy

IPC分类号： G08B21/00

CPC分类号： G01N29/07 ,  G01N29/30 ,  G01N29/4427 ,  G01N2291/02854 ,  G01N2291/2694

摘要： Alerting a user of a material inspection device to a change in thickness of a material being inspected is disclosed. A thickness offset is determined from calibration information. The calibration information identifies a time of flight of a pulse through a reference sample similar in composition to a material to be inspected. The thickness offset indicates when a thickness of a material being inspected differs from a thickness of the reference sample. A calibration thickness alarm is set, the calibration thickness alarm corresponding to the thickness offset. A change in thickness of the material being inspected is detected. The calibration thickness alarm is engaged to alert the user of the inspection device of a detected change in thickness of the material being inspected.

摘要翻译： 公开了材料检查装置的用户对所检查材料的厚度变化的警示。 从校准信息确定厚度偏移。 校准信息标识通过参考样品的脉冲的飞行时间，其类似于待检查的材料。 厚度偏移表示被检查材料的厚度何时与参考样品的厚度不同。 设置校准厚度报警，校准厚度报警对应于厚度偏移。 检测被检查材料的厚度变化。 校准厚度警报器被接合以向检查装置的用户通知检测到的被检查材料的厚度的变化。

公开(公告)号：US20170089847A1

公开(公告)日：2017-03-30

申请号：US14865827

申请日：2015-09-25

申请人： Michael Drummy ,  C. Tricia Liu

发明人： Michael Drummy ,  C. Tricia Liu

IPC分类号： G01N23/223

CPC分类号： G01N23/223 ,  G01J3/0272 ,  G01N23/22 ,  G01N2223/076 ,  G01N2223/301

摘要： Disclosed is a portable non-destructive testing (NDT) instrument system that transmits spectrum data measured from a test material sample to a remotely located computer for computation of the sample's atomic element composition. The atomic element composition is subsequently transmitted back to the portable instrument for display to the operator in real time. The precision and accuracy of the compositional computation is improved by the greater processing power of the high performance remote computer. The operator of the NDT instrument may choose to use the remote computer to perform part or all of the compositional computation.