CHARACTERIZATION OF FLAWS IN COMPOSITES IDENTIFIED BY THERMOGRAPHY
    1.
    发明申请
    CHARACTERIZATION OF FLAWS IN COMPOSITES IDENTIFIED BY THERMOGRAPHY 有权
    通过热分析鉴定的复合材料中的花的特征

    公开(公告)号:US20090245321A1

    公开(公告)日:2009-10-01

    申请号:US12059172

    申请日:2008-03-31

    IPC分类号: G01N25/72

    CPC分类号: G01N25/72

    摘要: A method for identifying types of flaws in a composite object includes: a) rapidly heating the surface of the object; b) recording pixel intensities in a sequence of IR images; c) determining temperature-versus-time data for each of the pixels from the IR images; and d) determining what type of flaw if any corresponds to each of the pixels using the temperature-versus-time data determined in step (c). A contrast curve derived from the temperature-versus-time data may be used in determining what type of flaws if any corresponds to each of the pixels. The contrast curve may be determined by subtracting a synthetic reference curve from a temperature time curve from the temperature-versus-time data. The types of flaws may be determined from size and/or shapes of peaks in the contrast curves. Some flaws are delaminations, layers of porosity, and uniformly distributed porosity.

    摘要翻译: 用于识别复合物体中的缺陷类型的方法包括:a)快速加热物体的表面; b)记录IR图像序列中的像素强度; c)从IR图像确定每个像素的温度 - 时间数据; 以及d)使用步骤(c)中确定的温度 - 时间数据来确定任何类型的缺陷是否对应于每个像素。 从温度 - 时间数据导出的对比曲线可以用于确定如果任何对应于每个像素的什么类型的缺陷。 对比度曲线可以通过从温度 - 时间数据的温度时间曲线中减去合成参考曲线来确定。 缺陷的类型可以根据对比度曲线中的峰的大小和/或形状来确定。 一些缺陷是分层,多孔层,均匀分布的孔隙度。

    Characterization of flaws in composites identified by thermography
    2.
    发明授权
    Characterization of flaws in composites identified by thermography 有权
    通过热成像鉴定的复合材料中的缺陷的表征

    公开(公告)号:US08393784B2

    公开(公告)日:2013-03-12

    申请号:US12059172

    申请日:2008-03-31

    IPC分类号: G01N25/72 G01N25/58 G01J5/00

    CPC分类号: G01N25/72

    摘要: A method for identifying types of flaws in a composite object includes: a) rapidly heating the surface of the object; b) recording pixel intensities in a sequence of IR images; c) determining temperature-versus-time data for each of the pixels from the IR images; and d) determining what type of flaw if any corresponds to each of the pixels using the temperature-versus-time data determined in step (c). A contrast curve derived from the temperature-versus-time data may be used in determining what type of flaws if any corresponds to each of the pixels. The contrast curve may be determined by subtracting a synthetic reference curve from a temperature time curve from the temperature-versus-time data. The types of flaws may be determined from size and/or shapes of peaks in the contrast curves. Some flaws are delaminations, layers of porosity, and uniformly distributed porosity.

    摘要翻译: 用于识别复合物体中的缺陷类型的方法包括:a)快速加热物体的表面; b)记录IR图像序列中的像素强度; c)从IR图像确定每个像素的温度 - 时间数据; 以及d)使用步骤(c)中确定的温度 - 时间数据来确定任何类型的缺陷是否对应于每个像素。 从温度 - 时间数据导出的对比曲线可以用于确定如果任何对应于每个像素的什么类型的缺陷。 对比度曲线可以通过从温度 - 时间数据的温度时间曲线中减去合成参考曲线来确定。 缺陷的类型可以根据对比度曲线中的峰的大小和/或形状来确定。 一些缺陷是分层,多孔层,均匀分布的孔隙度。

    Radiographic inspection of airframes and other large objects
    3.
    发明授权
    Radiographic inspection of airframes and other large objects 有权
    机身和其他大型物体的射线检查

    公开(公告)号:US07266174B2

    公开(公告)日:2007-09-04

    申请号:US11073504

    申请日:2005-03-07

    IPC分类号: G01B15/06

    CPC分类号: G01N23/04

    摘要: A system for radiographic inspection of an object includes a radiation source located on one side of the object and a radiation detector located on another side of the object, being positioned to receive radiation from the radiation source. At least one motion sensor is associated with the radiation detector, the radiation source, or the object, for detecting motion. The magnitude of motion of the components is compared to a pre-established limit value. The imaging process is conducted when the magnitude of any motion is less than the limit value.

    摘要翻译: 用于物体的放射线检查的系统包括位于物体的一侧的辐射源和位于物体的另一侧上的放射线检测器,被定位成接收来自辐射源的辐射。 至少一个运动传感器与放射线检测器,辐射源或物体相关联,用于检测运动。 将组件的运动幅度与预先建立的极限值进行比较。 当任何运动的大小小于极限值时进行成像过程。