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    • 1. 发明申请
    • Methods and apparatus for porosity measurement
    • 孔隙度测量方​​法和装置
    • US20070186655A1
    • 2007-08-16
    • US11355217
    • 2006-02-15
    • Francis ReedThomas Batzinger
    • Francis ReedThomas Batzinger
    • G01N29/04
    • G01N29/30G01N15/088G01N29/06G01N29/11G01N29/4463G01N2015/0846G01N2291/0231G01N2291/0234G01N2291/0427G01N2291/045
    • A method for non-destructively inspecting a composite structure with a single ultrasonic transducer includes determining a calibration amplitude of ultrasonic transmissions emitted by the single ultrasonic transducer to a reflector in a fluid-filled immersion tank and received back at the single ultrasonic transducer. The method also includes inserting the composite structure into the fluid-filled immersion tank between the reflector and the single ultrasonic transducer. In addition, the method includes scanning the composite structure with the single ultrasonic transducer to measure ultrasonic amplitudes for sound waves traveling through the composite structure, reflecting off the reflector plate and then traveling back through the structure to the single ultrasonic transducer. The measured ultrasonic amplitudes are corrected using the calibration amplitude and other measured transmission losses, and the corrected ultrasonic amplitudes are utilized to generate either or both a digital image showing porosity or a measurement of porosity of the composite structure.
    • 用单个超声波换能器非破坏性地检查复合结构的方法包括确定由单个超声波换能器发射的超声波传输的校准幅度到流体填充的浸没池中的反射器并在单个超声波换能器处被接收。 该方法还包括将复合结构插入到反射器和单个超声换能器之间的充满液体的浸没池中。 此外,该方法包括用单个超声换能器扫描复合结构,以测量通过复合结构传播的声波的超声振幅,反射出反射板,然后通过结构行进回到单个超声波换能器。 使用校准幅度和其他测量的传输损耗来校正测量的超声波幅度,并且利用校正的超声波幅度来产生显示孔隙率的数字图像或复合结构的孔隙率的测量。
    • 2. 发明申请
    • Method for ultrasonic elastic modulus calculation and imaging
    • 超声弹性模量计算与成像方法
    • US20070113655A1
    • 2007-05-24
    • US11284656
    • 2005-11-22
    • Francis Reed
    • Francis Reed
    • G01N29/04
    • G01N29/07G01N29/265G01N2291/011G01N2291/02827G01N2291/02836G01N2291/02854
    • Disclosed herein is a method and apparatus for generating an image of an article, wherein the image represents the articles elastic modulus. The method comprises the steps of measuring a time of flight value at a point on a test sample utilizing ultrasonic sound waves, measuring the position of the point, calculating a thickness value for the test sample, calculating a velocity value utilizing the time of flight value and the thickness value, calculating a density value for the test sample, calculating a Poisson's ratio value for the test sample, calculating an elastic modulus value utilizing the velocity value, the density value, and the Poisson's ratio value, assigning a shade of gray, or a color, to the elastic modulus values on the image, and, constructing an image utilizing the position of the point and the shaded, or colored, elastic modulus values.
    • 本文公开了一种用于产生物品的图像的方法和装置,其中图像表示物品的弹性模量。 该方法包括以下步骤:使用超声波测量测试样品上的点处的飞行时间值,测量点的位置,计算测试样品的厚度值,利用飞行时间值计算速度值 和厚度值,计算试样的密度值,计算试样的泊松比值,利用速度值,密度值和泊松比值计算弹性模量值,分配灰色阴影, 或颜色,图像上的弹性模量值,以及利用点和阴影位置或着色弹性模量值构建图像。
    • 3. 发明申请
    • NONDESTRUCTIVE INSPECTION METHOD AND SYSTEM THEREFOR
    • 非结构性检查方法及其系统
    • US20060144149A1
    • 2006-07-06
    • US11026274
    • 2004-12-31
    • Francis Reed
    • Francis Reed
    • G01N29/00
    • G01N29/043G01N15/088G01N29/4463G01N2203/0096G01N2291/0231G01N2291/02441G01N2291/0251G01N2291/02827G01N2291/045G01N2291/101
    • A method and system for determining the fiber volume fraction of a composite structure. The system includes a unit for ultrasonically determining the porosity volume fraction in the article, and a unit for calculating the volume fraction of the fibrous reinforcement material in the article based on the porosity volume fraction in the article and the mass densities of the article and the fiber and matrix materials within the article. The method entails determining the mass density of the article, obtaining the mass densities of the fiber material and the matrix material, ultrasonically determining the porosity volume fraction in the article, and then calculating the volume fraction of the fibrous reinforcement material in the article based on the porosity volume fraction in the article, the mass density of the article, the mass density of the matrix material, and the mass density of the fiber material.
    • 用于确定复合结构的纤维体积分数的方法和系统。 该系统包括用于超声波确定制品中的孔隙体积分数的单元,以及用于基于制品中的孔隙体积分数和制品的质量密度计算制品中的纤维增强材料的体积分数的单元 纤维和基体材料。 该方法需要确定制品的质量密度,获得纤维材料和基质材料的质量密度,超声波确定制品中的孔隙体积分数,然后计算制品中纤维增强材料的体积分数,基于 制品中的孔隙体积分数,制品的质量密度,基质材料的质量密度和纤维材料的质量密度。