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    • 6. 发明申请
    • METHOD AND APPARATUS FOR EXTERNAL PIPELINE WELD INSPECTION
    • 外部管道焊接检测方法与装置
    • US20120201347A1
    • 2012-08-09
    • US13392672
    • 2010-08-27
    • Garth R. PrenticeStephen KnightStephen G. Drake
    • Garth R. PrenticeStephen KnightStephen G. Drake
    • G01N23/18
    • G01N23/18B23K31/125G01N2223/3303G01N2223/3304G01N2223/628G01N2223/629
    • An apparatus is provided for external inspection of a pipeline circumferential weld. This comprises a radiation source (5) and radiation detector (3). Both units are controllably movable around a drive band or track (7) which is fitted around the circumferential weld. To align the source with the detector the source and detector are moved with respect to each other clockwise and anticlockwise around an initial position whilst sampling the radiation detected at a number of positions. A position of maximum strength of the radiation signal detected can then be determined such that the centre point of the radiation source may be located. The source and detector are then substantially aligned with each other and means are provided to move the source and detector circumferentially around the weld whilst remaining substantially in alignment.
    • 提供了一种用于外部检查管道周向焊缝的装置。 这包括辐射源(5)和辐射探测器(3)。 两个单元可围绕围绕周向焊缝的驱动带或轨道(7)可控地移动。 为了将源与检测器对准,源和检测器相对于彼此顺时针和逆时针方向围绕初始位置移动,同时对在多个位置处检测到的辐射进行采样。 然后可以确定检测到的辐射信号的最大强度的位置,使得辐射源的中心点可以被​​定位。 源和检测器然后基本上彼此对准,并且提供装置以使源和检测器周向地围绕焊缝移动,同时保持基本上对齐。
    • 7. 发明申请
    • Exact filtered back projection (FBP) algorithm for spiral computer tomography with variable pitch
    • 用于具有可变间距的螺旋计算机断层摄影的精确滤波反投影(FBP)算法
    • US20060029180A1
    • 2006-02-09
    • US11239605
    • 2005-09-29
    • Alexander Katsevich
    • Alexander Katsevich
    • A61B6/00H05G1/60
    • G06T11/006A61B6/027A61B6/032A61B6/4441A61B6/4464A61B6/5205G01N2223/3304G01N2223/419G06T2211/416G06T2211/421Y10S378/901
    • Reconstructing images of objects spirally scanned with two-dimensional detectors with a novel algorithm under a variable pitch (nonconstant speed), where the object is not restricted to moving at a constant velocity. The object can move at variable speeds(increasing, decreasing, combinations thereof) during the scan of the object. The image reconstruction process is proven to create an exact image of the object under the ideal circumstances. The algorithm can have a convolution-based FBP (Filtered Back Projection) structure and works very efficiently. The algorithm uses less computer power and y combines the benefits of Exact Algorithms and Approximate algorithms. An object can be moved at a nonconstant speed through a rotating source and oppositely located detector. Additionally, at least one source and oppositely located detector can be mounted on a coil stand for generating the spiral scan.
    • 用可变间距(非恒定速度)的新颖算法用二维检测器螺旋扫描的物体重建图像,其中物体不限于以恒定速度移动。 在对象的扫描期间,物体可以以可变速度(增加,减小,组合)移动。 图像重建过程被证明可以在理想情况下创建物体的精确图像。 该算法可以具有基于卷积的FBP(滤波反投影)结构,并且非常有效地工作。 该算法使用较少的计算机功率,并且结合了精确算法和近似算法的优点。 物体可以通过旋转源和相对位置的检测器以非恒定速度移动。 此外,至少一个源极和相对位置的检测器可以安装在线圈架上以产生螺旋扫描。
    • 8. 发明公开
    • SYSTEM AND METHOD FOR X-RAY TIRE INSPECTION
    • 系统VERFAHRENFÜRRÖNTGENINSPEKTIONVON REIFEN
    • EP3137882A1
    • 2017-03-08
    • EP14732671.4
    • 2014-04-29
    • Analogic Corporation
    • SHAUGHNESSY, Charles H.URCHUK, Steven N.KARBEYAZ, Basak Ulker
    • G01N23/04G01N23/18G01M17/03
    • G01N23/185G01M17/028G01N2223/3304G01N2223/627G01N2223/643G01N2223/646
    • Among other things, a tire inspection system (100) and method are provided. A radiation source (116) and a detector array (118) are configured to rotate about an axis of rotation. During a first examination of a tire (104), the tire (104) has a first orientation relative to the axis of rotation, and during a second examination, the tire (104) has a second orientation relative to the axis of rotation. For example, between the first examination and the second examination, the tire (104) is at least one of shifted with respect to the axis of rotation or rotated about a tire rotation axis (e.g., perpendicular to the axis of rotation) to change the orientation of the tire relative to the axis of rotation. Such rotation and translation of the tire (104) are carried out by using a conveyer belt (114) and a robotic arm (602). In this manner, imagery of the tire (104) may be developed, which can be inspected to identify irregularities, etc. in the tire (104), for example.
    • 其中,提供了轮胎检查系统(100)和方法。 辐射源(116)和检测器阵列(118)构造成围绕旋转轴线旋转。 在对轮胎(104)的第一次检查期间,轮胎(104)具有相对于旋转轴线的第一取向,并且在第二次检查期间,轮胎(104)相对于旋转轴线具有第二取向。 例如,在第一检查和第二次检查之间,轮胎(104)相对于旋转轴线移动或围绕轮胎旋转轴线(例如,垂直于旋转轴线)旋转中的至少一个,以改变 轮胎相对于旋转轴线的取向。 通过使用输送带(114)和机器臂(602)来进行轮胎(104)的这种旋转和平移。 以这种方式,例如可以开发轮胎(104)的图像,其可以被检查以识别轮胎(104)中的不规则等。