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：US07832275B2

公开(公告)日：2010-11-16

申请号：US12172863

申请日：2008-07-14

申请人： Andrew Thomas ,  Steven Besser ,  Jason Toomey

发明人： Andrew Thomas ,  Steven Besser ,  Jason Toomey

IPC分类号： G01N29/38

CPC分类号： G01N29/262 ,  G01N29/043 ,  G01N29/42 ,  G01N29/44 ,  G01N29/4463 ,  G01N29/449 ,  G01N2291/044 ,  G01N2291/102

摘要： An ultrasonic inspection system utilizes a tunable digital filter with 4× interpolation. The system is used for scanning objects to be tested and includes a transmit/receive device to generate a test signal and receive an echo signal. A signal processing circuit processes the echo signal with one or more digital to analog converters for converting an analog version of the echo signal to a digital echo signal in the form of streaming digital data which is stored in a memory. The data is stored at a first data rate and read out at the second, slower data rate. An averaging decimator receives and processes the data from the memory and supplies it to an IIR filter and subsequently to an FIR filter and ultimately to a box car filter to effect processing thereon which increases the perceived resolution of the data by a given factor, preferably by a factor of 4.

摘要翻译： 超声波检测系统采用4×内插的可调数字滤波器。 该系统用于扫描要测试的对象，并且包括发射/接收装置以产生测试信号并接收回波信号。 信号处理电路用一个或多个数模转换器来处理回波信号，用于将回波信号的模拟版本转换成存储在存储器中的流式数字数据形式的数字回波信号。 数据以第一数据速率存储，并以第二个较慢的数据速率读出。 平均抽取器接收并处理来自存储器的数据并将其提供给IIR滤波器并随后提供给FIR滤波器并且最终提供给盒式汽车滤波器以对其进行处理，从而将数据的感知分辨率提高给定因子，优选地通过 一个因素4。

公开(公告)号：US07757557B2

公开(公告)日：2010-07-20

申请号：US11490334

申请日：2006-07-20

申请人： Andrew Thomas ,  Steven Besser ,  Jason Toomey

发明人： Andrew Thomas ,  Steven Besser ,  Jason Toomey

IPC分类号： G01N29/38

CPC分类号： G01N29/262 ,  G01N29/043 ,  G01N29/42 ,  G01N29/44 ,  G01N29/4463 ,  G01N29/449 ,  G01N2291/044 ,  G01N2291/102

摘要： An ultrasonic inspection system utilizes a tunable digital filter with 4× interpolation. The system is used for scanning objects to be tested and includes a transmit/receive device to generate a test signal and receive an echo signal. A signal processing circuit processes the echo signal with one or more analog to digital converters for converting an analog version of the echo signal to a digital echo signal in the form of streaming digital data which is stored in a memory. The data is stored at a first data rate and read out at the second, slower data rate. An averaging decimator receives and processes the data from the memory and supplies it to an IIR filter and subsequently to an FIR filter and ultimately to a box car filter to effect processing thereon which increases the perceived resolution of the data by a given factor, preferably by a factor of 4.

摘要翻译： 超声波检测系统采用4×内插的可调数字滤波器。 该系统用于扫描要测试的对象，并且包括发射/接收装置以产生测试信号并接收回波信号。 信号处理电路用一个或多个模拟数字转换器处理回波信号，用于将回波信号的模拟版本转换成存储在存储器中的流式数字数据形式的数字回波信号。 数据以第一数据速率存储，并以第二个较慢的数据速率读出。 平均抽取器接收并处理来自存储器的数据并将其提供给IIR滤波器并随后提供给FIR滤波器并且最终提供给盒式汽车滤波器以对其进行处理，从而将数据的感知分辨率提高给定因子，优选地通过 一个因素4。

公开(公告)号：US20090205428A1

公开(公告)日：2009-08-20

申请号：US12172863

申请日：2008-07-14

申请人： Andrew Thomas ,  Steven Besser ,  Jason Toomey

发明人： Andrew Thomas ,  Steven Besser ,  Jason Toomey

IPC分类号： G01N29/04

CPC分类号： G01N29/262 ,  G01N29/043 ,  G01N29/42 ,  G01N29/44 ,  G01N29/4463 ,  G01N29/449 ,  G01N2291/044 ,  G01N2291/102

摘要： An ultrasonic inspection system utilizes a tunable digital filter with 4× interpolation. The system is used for scanning objects to be tested and includes a transmit/receive device to generate a test signal and receive an echo signal. A signal processing circuit processes the echo signal with one or more digital to analog converters for converting an analog version of the echo signal to a digital echo signal in the form of streaming digital data which is stored in a memory. The data is stored at a first data rate and read out at the second, slower data rate. An averaging decimator receives and processes the data from the memory and supplies it to an IIR filter and subsequently to an FIR filter and ultimately to a box car filter to effect processing thereon which increases the perceived resolution of the data by a given factor, preferably by a factor of 4.

摘要翻译： 超声波检测系统采用4x插值的可调数字滤波器。 该系统用于扫描要测试的对象，并且包括发射/接收装置以产生测试信号并接收回波信号。 信号处理电路用一个或多个数模转换器来处理回波信号，用于将回波信号的模拟版本转换成存储在存储器中的流式数字数据形式的数字回波信号。 数据以第一数据速率存储，并以第二个较慢的数据速率读出。 平均抽取器接收并处理来自存储器的数据并将其提供给IIR滤波器并随后提供给FIR滤波器并且最终提供给盒式汽车滤波器以对其进行处理，从而将数据的感知分辨率提高给定因子，优选地通过 一个因素4。

公开(公告)号：US07461554B2

公开(公告)日：2008-12-09

申请号：US11489892

申请日：2006-07-20

申请人： Andrew Thomas ,  Steven Besser

发明人： Andrew Thomas ,  Steven Besser

IPC分类号： G01N29/38

CPC分类号： H03G1/0088 ,  G01N29/36 ,  G01N29/40 ,  G01N29/4463 ,  G01N2291/106 ,  G01S7/52033 ,  H03G3/001

摘要： In a non-destructive test instrument, there is provided a time variable gain (TVG) amplifier wherein the gain of the amplifier is dynamically changed to optimize the amplitude of a flaw echo signal. The TVG digital memory for a given TVG curve specifies and controls not only the start gain value, and the end game value, but the gain rate of change slope as well to generate TVG curve line segments.

摘要翻译： 在非破坏性测试仪器中，提供了一种时间可变增益（TVG）放大器，其中动态地改变放大器的增益以优化缺陷回波信号的幅度。 用于给定TVG曲线的TVG数字存储器不仅指定并控制起始增益值和结束游戏值，而且还对变化斜率的增益率以及产生TVG曲线线段进行控制。

公开(公告)号：US20070085606A1

公开(公告)日：2007-04-19

申请号：US11489892

申请日：2006-07-20

申请人： Andrew Thomas ,  Steven Besser

发明人： Andrew Thomas ,  Steven Besser

IPC分类号： H03F3/45

CPC分类号： H03G1/0088 ,  G01N29/36 ,  G01N29/40 ,  G01N29/4463 ,  G01N2291/106 ,  G01S7/52033 ,  H03G3/001

摘要： In a non-destructive test instrument, there is provided a time variable gain (TVG) amplifier wherein the gain of the amplifier is dynamically changed to optimize the amplitude of a flaw echo signal. The TVG digital memory for a given TVG curve specifies and controls not only the start gain value, and the end game value, but the gain rate of change slope as well to generate TVG curve line segments.

摘要翻译： 在非破坏性测试仪器中，提供了一种时间可变增益（TVG）放大器，其中动态地改变放大器的增益以优化缺陷回波信号的幅度。 用于给定TVG曲线的TVG数字存储器不仅指定并控制起始增益值和结束游戏值，而且还对变化斜率的增益率以及产生TVG曲线线段进行控制。

公开(公告)号：US20070084289A1

公开(公告)日：2007-04-19

申请号：US11490334

申请日：2006-07-20

申请人： Andrew Thomas ,  Steven Besser ,  Jason Toomey

发明人： Andrew Thomas ,  Steven Besser ,  Jason Toomey

IPC分类号： G01N29/00

CPC分类号： G01N29/262 ,  G01N29/043 ,  G01N29/42 ,  G01N29/44 ,  G01N29/4463 ,  G01N29/449 ,  G01N2291/044 ,  G01N2291/102

摘要： An ultrasonic inspection system utilizes a tunable digital filter with 4× interpolation. The system is used for scanning objects to be tested and includes a transmit/receive device to generate a test signal and receive an echo signal. A signal processing circuit processes the echo signal with one or more digital to analog converters for converting an analog version of the echo signal to a digital echo signal in the form of streaming digital data which is stored in a memory. The data is stored at a first data rate and read out at the second, slower data rate. An averaging decimator receives and processes the data from the memory and supplies it to an IIR filter and subsequently to an FIR filter and ultimately to a box car filter to effect processing thereon which increases the perceived resolution of the data by a given factor, preferably by a factor of 4.

摘要翻译： 超声波检测系统采用4x插值的可调数字滤波器。 该系统用于扫描要测试的对象，并且包括发射/接收装置以产生测试信号并接收回波信号。 信号处理电路用一个或多个数模转换器来处理回波信号，用于将回波信号的模拟版本转换成存储在存储器中的流式数字数据形式的数字回波信号。 数据以第一数据速率存储，并以第二个较慢的数据速率读出。 平均抽取器接收并处理来自存储器的数据并将其提供给IIR滤波器并随后提供给FIR滤波器并且最终提供给盒式汽车滤波器以对其进行处理，从而将数据的感知分辨率提高给定因子，优选地通过 一个因素4。

公开(公告)号：US09063174B2

公开(公告)日：2015-06-23

申请号：US14077322

申请日：2013-11-12

申请人： Andrew Thomas ,  Steven Besser

发明人： Andrew Thomas ,  Steven Besser

IPC分类号： G01N27/72 ,  G01R33/07 ,  G01R1/44 ,  G01D3/036 ,  G01R33/00 ,  G01B7/06 ,  G01D5/14

CPC分类号： G01R1/44 ,  G01B7/10 ,  G01D3/0365 ,  G01D5/142 ,  G01R33/0035 ,  G01R33/0082 ,  G01R33/072

摘要： Disclosed is a Hall Effect instrument with the capability of compensating for temperature drift consistently, accurately and in real time of operation. The instrument embodies a four-point ohm meter circuit measuring Hall Effect sensor resistance and tracking the effect of temperature on the Hall Effect sensor. The instrument takes into account a relationship between the temperature and a temperature compensation index on a per probe basis, which has exhibited a deterministic difference observed by the present inventor.

摘要翻译： 公开了一种霍尔效应仪器，其能够一致，准确和实时地补偿温度漂移。 该仪器体现了四点欧姆表电路，测量霍尔效应传感器电阻并跟踪温度对霍尔效应传感器的影响。 该仪器考虑了基于每个探针的温度和温度补偿指数之间的关系，其显示出本发明人观察到的确定性差异。

公开(公告)号：US20150142356A1

公开(公告)日：2015-05-21

申请号：US14601961

申请日：2015-01-21

申请人： Andrew Thomas ,  Steven Besser

发明人： Andrew Thomas ,  Steven Besser

IPC分类号： G01R33/07 ,  G01R35/00

CPC分类号： G01R33/072 ,  G01B7/10 ,  G01D3/0365 ,  G01D5/142 ,  G01R1/44 ,  G01R33/0035 ,  G01R33/0082 ,  G01R35/00

摘要： Disclosed is a Hall Effect instrument with the capability of compensating for temperature drift consistently, accurately and in real time of operation. The instrument embodies a four-point ohmmeter circuit measuring Hall Effect sensor resistance and tracking the effect of temperature on the Hall Effect sensor. The instrument takes into account a relationship between the temperature and a temperature compensation index on a per probe basis, which has exhibited a deterministic difference observed by the present inventor.

摘要翻译： 公开了一种霍尔效应仪器，其能够一致，准确和实时地补偿温度漂移。 该仪器体现了四点欧姆表电路，测量霍尔效应传感器电阻，并跟踪温度对霍尔效应传感器的影响。 该仪器考虑了基于每个探针的温度和温度补偿指数之间的关系，其显示出本发明人观察到的确定性差异。

公开(公告)号：US20140132254A1

公开(公告)日：2014-05-15

申请号：US14077322

申请日：2013-11-12

申请人： Andrew Thomas ,  Steven Besser

发明人： Andrew Thomas ,  Steven Besser

IPC分类号： G01R1/44

CPC分类号： G01R1/44 ,  G01B7/10 ,  G01D3/0365 ,  G01D5/142 ,  G01R33/0035 ,  G01R33/0082 ,  G01R33/072

摘要： Disclosed is a Hall Effect instrument with the capability of compensating for temperature drift consistently, accurately and in real time of operation. The instrument embodies a four-point ohm meter circuit measuring Hall Effect sensor resistance and tracking the effect of temperature on the Hall Effect sensor. The instrument takes into account a relationship between the temperature and a temperature compensation index on a per probe basis, which has exhibited a deterministic difference observed by the present inventor.

摘要翻译： 公开了一种霍尔效应仪器，其能够一致，准确和实时地补偿温度漂移。 该仪器体现了四点欧姆表电路，测量霍尔效应传感器电阻并跟踪温度对霍尔效应传感器的影响。 该仪器考虑了基于每个探针的温度和温度补偿指数之间的关系，其显示出本发明人观察到的确定性差异。