NUCLEAR QUADRUPOLE RESONANCE SYSTEM AND METHOD FOR STRUCTURAL HEALTH MONITORING
    1.
    发明申请
    NUCLEAR QUADRUPOLE RESONANCE SYSTEM AND METHOD FOR STRUCTURAL HEALTH MONITORING 有权
    核四重谐振系统及结构健康监测方法

    公开(公告)号:US20120025827A1

    公开(公告)日:2012-02-02

    申请号:US13174488

    申请日:2011-06-30

    IPC分类号: G01R33/46 C09K3/00 G01R33/28

    CPC分类号: G01R33/441

    摘要: Structural health monitoring using nuclear quadrupole resonance is disclosed. For example, in one embodiment, a method of monitoring stress is provided. The method includes scanning a composite using an NQR spectrometer, the composite having a polymer matrix and a microcrystalline material disposed in the matrix. The microcrystalline material includes molecules having nuclei with respective nuclear quadrupole moments. The method also includes determining microscopic strain distribution indices of the composite from the NQR scans to quantify stress and identify precursors to failure in the composite.

    摘要翻译: 公开了使用核四极共振的结构健康监测。 例如,在一个实施例中,提供了监视应力的方法。 该方法包括使用NQR光谱仪扫描复合材料,所述复合材料具有聚合物基质和设置在基质中的微晶材料。 微晶材料包括具有各自具有核四极矩的核的分子。 该方法还包括从NQR扫描确定复合材料的微观应变分布指数以量化应力并鉴定复合材料中的失效前体。

    Nuclear quadrupole resonance system and method for structural health monitoring
    2.
    发明授权
    Nuclear quadrupole resonance system and method for structural health monitoring 有权
    核四极共振系统及结构健康监测方法

    公开(公告)号:US08232801B2

    公开(公告)日:2012-07-31

    申请号:US13174488

    申请日:2011-06-30

    IPC分类号: G01V3/00

    CPC分类号: G01R33/441

    摘要: Structural health monitoring using nuclear quadrupole resonance is disclosed. For example, in one embodiment, a method of monitoring stress is provided. The method includes scanning a composite using an NQR spectrometer, the composite having a polymer matrix and a microcrystalline material disposed in the matrix. The microcrystalline material includes molecules having nuclei with respective nuclear quadrupole moments. The method also includes determining microscopic strain distribution indices of the composite from the NQR scans to quantify stress and identify precursors to failure in the composite.

    摘要翻译: 公开了使用核四极共振的结构健康监测。 例如,在一个实施例中,提供了监视应力的方法。 该方法包括使用NQR光谱仪扫描复合材料,所述复合材料具有聚合物基质和设置在基质中的微晶材料。 微晶材料包括具有各自具有核四极矩的核的分子。 该方法还包括从NQR扫描确定复合材料的微观应变分布指数以量化应力并鉴定复合材料中的失效前体。

    Method and apparatus for calculating confidence intervals
    3.
    发明授权
    Method and apparatus for calculating confidence intervals 失效
    计算置信区间的方法和装置

    公开(公告)号:US06463391B1

    公开(公告)日:2002-10-08

    申请号:US09576688

    申请日:2000-05-23

    申请人: Thomas Alan Early

    发明人: Thomas Alan Early

    IPC分类号: G06F10114

    CPC分类号: G06F17/246 G06F17/18

    摘要: An exemplary embodiment of the invention is an apparatus and method for calculating confidence intervals. The method comprises activating a calculator. The user selects input data for the calculator. The calculator reformats the input data into output data. The calculator then generates a specific calibration summary using the output data. The calculator plots a linear calibration curve derived from the specific calibration summary. The calculator then plots a calibration residual value plot derived from the specific calibration summary. The calculator calculates a back-calculated unknown sample value. Lastly, the calculator calculates a confidence interval for said at least one back-calculated unknown sample value.

    摘要翻译: 本发明的示例性实施例是用于计算置信区间的装置和方法。 该方法包括激活计算器。 用户选择计算器的输入数据。 计算器将输入数据重新格式化为输出数据。 然后,计算器使用输出数据生成特定的校准摘要。 计算器绘制从特定校准摘要导出的线性校准曲线。 然后,计算器绘制从特定校准摘要导出的校准残差图。 计算器计算反向计算的未知样本值。 最后,计算器计算所述至少一个反向计算的未知样本值的置信区间。

    Method and apparatus for calculating confidence intervals
    4.
    发明授权
    Method and apparatus for calculating confidence intervals 失效
    计算置信区间的方法和装置

    公开(公告)号:US06560587B1

    公开(公告)日:2003-05-06

    申请号:US09576988

    申请日:2000-05-23

    申请人: Thomas Alan Early

    发明人: Thomas Alan Early

    IPC分类号: G06N500

    CPC分类号: G06F17/18

    摘要: An exemplary embodiment of the present invention is a method for calculating at least one confidence interval. The method comprises a set of instructions that activate a calculator. The user selects input data, which the calculator reformats to generate output data. The calculator then generates both a calibration summary and specific calibration summary containing calibration standard measurements from the output data. A linear calibration curve and residual calibration value plot are derived from these calibration standard measurements. The calculator calculates a back-calculated unknown sample value using the information gathered from the linear calibration curve and residual calibration value plot. The calculator can then calculate the confidence interval for the back-calculated unknown sample value.

    摘要翻译: 本发明的示例性实施例是用于计算至少一个置信区间的方法。 该方法包括激活计算器的一组指令。 用户选择输入数据,计算器重新格式化以生成输出数据。 然后,计算器生成校准摘要和包含校准标准测量结果的特定校准摘要。 从这些校准标准测量得到线性校准曲线和残差校准值图。 计算器使用从线性校准曲线和剩余校准值图中收集的信息计算反向计算的未知样本值。 然后,计算器可以计算反向计算的未知样本值的置信区间。

    Method and apparatus for calculating confidence intervals
    5.
    发明授权
    Method and apparatus for calculating confidence intervals 失效
    计算置信区间的方法和装置

    公开(公告)号:US06480808B1

    公开(公告)日:2002-11-12

    申请号:US09576680

    申请日:2000-05-23

    IPC分类号: G06F10114

    CPC分类号: G06F17/18

    摘要: An exemplary embodiment of the invention is a method and apparatus for calculating at least one confidence interval. The method comprises activating a calculator. The calculator prompts the user to enter at least three pairs of calibration data. The user then specifies a reference for the calibration data. The calculator then generates a list of the calibration data. The calculator then calculates a linear calibration curve derived from the calibration data. The calculator then calculates a residual calibration value plot derived from the calibration data. The user enters an unknown sample output measurement. The calculator calculates a back-calculated unknown sample input measurement. The calculator lastly calculates a confidence interval for the back-calculated unknown sample input measurement.

    摘要翻译: 本发明的示例性实施例是用于计算至少一个置信区间的方法和装置。 该方法包括激活计算器。 计算器提示用户输入至少三对校准数据。 用户然后指定校准数据的参考。 然后,计算器生成校准数据列表。 然后,计算器计算从校准数据导出的线性校准曲线。 然后,计算器计算从校准数据导出的残差校准值图。 用户输入未知的样品输出测量值。 计算器计算反向计算的未知样本输入测量。 计算器最后计算反向计算的未知样本输入测量的置信区间。

    Method and system to determine physical properties
    6.
    发明授权
    Method and system to determine physical properties 失效
    方法和系统来确定物理性质

    公开(公告)号:US06437565B1

    公开(公告)日:2002-08-20

    申请号:US09614048

    申请日:2000-07-11

    IPC分类号: G01V300

    摘要: A method and system are provided that can be used at any stage of a manufacturing process to determine physical properties such as crosslink density. The method and system require little or no sample manipulation. The method and system are independent of rubber particle size and matrix composition. In the method and system, physical properties of a material are determined by NMR measurement. A T1 (spin lattice relaxation time) is measured for a material, a T2 (spin-spin relaxation time) is measured for the material and a value T1/T2 is calculated that is representative of a physical property of material.

    摘要翻译: 提供了可以在制造过程的任何阶段使用以确定物理性质如交联密度的方法和系统。 该方法和系统需要很少或没有样品操作。 该方法和系统独立于橡胶粒径和基体组成。 在该方法和系统中,通过NMR测量确定材料的物理性质。 对于材料测量T1(自旋晶格弛豫时间),测量材料的T2(自旋 - 自旋弛豫时间),并且计算代表材料的物理性质的值T1 / T2。