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    • 14. 发明授权
    • Hand-holdable probe having a flexible eddy current sensor
    • 手持式探头具有柔性涡流传感器
    • US5841277A
    • 1998-11-24
    • US803612
    • 1997-02-21
    • Kristina Helena Valborg HedengrenJohn David YoungThomas Burrows HewtonCarl Granger, Jr.
    • Kristina Helena Valborg HedengrenJohn David YoungThomas Burrows HewtonCarl Granger, Jr.
    • G01N27/90G01R33/12G01N27/72G01N27/82
    • G01N27/902
    • A probe, such as an eddy current probe, which can be moved by hand to a surface to be tested. A toroidal-shaped first resilient member contacts the bottom face of a support member. An elastic membrane extends over the bore of the first resilient member, contacts the bottom lateral surface of the first resilient member, and is unattached to the radially-inward-facing surface of the first resilient member. A more elastic, second resilient member is placed in the bore, is unattached to the first resilient member, and contacts the bottom surface of the elastic membrane. A flexible, surface-conformable, eddy current sensing coil overlies a portion of the bottom side of the second resilient member. More broadly stated, the probe includes first apparatus, for providing a stand-off distance between the support member and the surface, and second apparatus, which includes a flexible sensor (such as an eddy-current sensing coil), for providing a predetermined force to the surface, the predetermined force being essentially decoupled from any force applied to the surface by the first apparatus.
    • 探头,如涡流探头,可以手动移动到要测试的表面。 环形的第一弹性构件接触支撑构件的底面。 弹性膜在第一弹性构件的孔上延伸,接触第一弹性构件的底侧表面,并且未附接到第一弹性构件的径向向内的表面。 更弹性的第二弹性构件放置在孔中,未附接到第一弹性构件并且接触弹性膜的底表面。 柔性的,表面贴合的涡流感测线圈覆盖在第二弹性构件的底侧的一部分上。 更广泛地说,探针包括用于在支撑构件和表面之间提供间隔距离的第一装置和包括柔性传感器(例如涡流感测线圈)的第二装置,用于提供预定的力 在表面上,预定的力基本上与由第一装置施加到表面的任何力分离。
    • 15. 发明授权
    • Multi-resolution detection for increasing in an x-ray imaging
implementation of an object
    • 用于在对象的x射线成像实现中提高分辨率的多分辨率检测
    • US5822392A
    • 1998-10-13
    • US774978
    • 1996-12-26
    • Kristina Helena Valborg Hedengren
    • Kristina Helena Valborg Hedengren
    • G01T1/00G01T1/20G01T1/24G01T1/29G06F15/00
    • G01T1/2018G01T1/246G01T1/2928
    • The present invention discloses a multi-resolution detector for use in an x-ray imaging implementation such as computed tomography and digital radiography. The multi-resolution detector includes a two-dimensional, m.times.n element array of low resolution detector elements and at least one high resolution detector element located about the two-dimensional, m.times.n element array of low resolution detector elements. After an object has been completely scanned with the multi-resolution detector the scan data from both the two-dimensional, m.times.n element array of low resolution detector elements and the high resolution detector element is used to reconstruct a high resolution image. In particular, the scan data generated from the two-dimensional, m.times.n element array of low resolution detector elements is used along with the initial scan data generated from the high resolution detector element to iteratively construct a high resolution image of the object.
    • 本发明公开了一种用于X射线成像实施例如计算机断层摄影和数字射线照相术的多分辨率检测器。 多分辨率检测器包括低分辨率检测器元件的二维,m×n元素阵列和位于低分辨率检测器元件的二维,m×n元素阵列周围的至少一个高分辨率检测器元件。 在使用多分辨率检测器对物体进行完全扫描之后,来自低分辨率检测器元件的二维,mxn元素阵列和高分辨率检测器元件的扫描数据用于重构高分辨率图像。 特别地,从低分辨率检测器元件的二维,m×n元素阵列生成的扫描数据与从高分辨率检测器元件生成的初始扫描数据一起被使用以迭代地构建对象的高分辨率图像。
    • 16. 发明授权
    • Multilayer eddy current probe array for complete coverage of an
inspection surface without mechanical scanning
    • 多层涡流探头阵列,无需机械扫描即可完整覆盖检测表面
    • US5659248A
    • 1997-08-19
    • US632182
    • 1996-04-15
    • Kristina Helena Valborg HedengrenWilliam Paul Kornrumpf
    • Kristina Helena Valborg HedengrenWilliam Paul Kornrumpf
    • G01N27/82G01N27/90
    • G01N27/9013G01N27/82
    • An eddy current surface measurement array structure for complete coverage of an underlying inspection surface without requiring mechanical scanning is disclosed. A three-dimensional array of eddy current sense elements is organized as a plurality of layers of two-dimensional sub-arrays. The sub-arrays, although in different layers, are essentially identical in configuration, and are staggered such that the sense elements of one layer provide at least partial coverage of portions of the inspection surface not covered by the sense elements of another layer. As many staggered layers are included as are necessary to ensure that no "blind spots" remain, for complete coverage of the underlying inspection surface. The sense elements are disposed in a layered flexible structure fabricated employing high density interconnect fabrication techniques or other photolithographic techniques. Static (electronic) scanning is employed, by individual layer and by row and column within each layer, to form a two-dimensional image of the inspection surface.
    • 公开了一种用于完全覆盖底层检查表面而不需要机械扫描的涡流表面测量阵列结构。 涡流感测元件的三维阵列被组织为多层二维子阵列。 子阵列尽管在不同的层中基本上在相同的结构上并且交错,使得一层的感测元件至少部分地覆盖检查表面的未被另一层的感测元件覆盖的部分。 包括许多交错的层,以确保不存在“盲点”,以完全覆盖底层检查表面。 传感元件设置在使用高密度互连制造技术或其它光刻技术制造的分层柔性结构中。 使用静态(电子)扫描,通过单层和每层内的行和列来形成检查表面的二维图像。