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公开(公告)号：US4403294A
公开(公告)日：1983-09-06
申请号：US211113
申请日：1980-11-28
CPC分类号： G01N21/88 , G06T7/001 , G06T2207/30164
摘要： A surface defect inspection system comprises an image pick-up device for picking up an image by sequentially scanning the surface of an object two-dimensionally, a threshold circuit for quantizing the image signal produced from the image pick-up device as a binary code, a pattern feature extracting device for making calculations for extracting the features of image patterns from the quantized signal in synchronism with the scanning, and for temporarily storing the result of the calculations, a pattern region end decision device for deciding that individual pattern regions have ended in one direction, and a defect decision device for reading out from the pattern feature extracting device the result of the calculations on the pattern features corresponding to the positions each of the patterns in the direction perpendicular to the one direction each time of the decision that each pattern region has ended, so that the feature of each pattern scanned is compared with a predetermined reference, thus deciding and an indication of producing the presence or absence of a defect.
摘要翻译： 表面缺陷检查系统包括用于通过二维顺序地扫描对象的表面来拾取图像的图像拾取装置，用于量化由图像拾取装置产生的图像信号作为二进制代码的阈值电路， 图案特征提取装置，用于进行与扫描同步地从量化信号中提取图像图案的特征的计算，并且用于临时存储计算结果;图案区域结束判定装置，用于决定各个图案区域已经结束 一个方向，以及缺陷判定装置，用于从每个图案特征提取装置的每个图案每次都从与图形特征相对应的图案特征相对应的图案特征提取装置读出与每个方向垂直的方向上的位置的计算结果 区域已经结束，使得所扫描的每个图案的特征与预定的裁剪进行比较 因此，决定和产生缺陷的存在或缺失的指示。
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公开(公告)号：US4410278A
公开(公告)日：1983-10-18
申请号：US170181
申请日：1980-07-18
IPC分类号： G01N21/952 , G01N21/55 , G01N21/88
CPC分类号： G01N21/952
摘要： An apparatus for inspecting the outer peripheral surface of a cylindrical object is disclosed, in which the light in slit form is radiated on the surface of an object such as a nuclear fuel pellet at an angle thereto, the light regularly reflected on the surface is detected by a detector, the detected image signal is quantized at threshold values higher and lower than an average level, and the binary signals are used to detect surface losses separately from an unground part and a metal inclusion as a first detection process. The diffused light is radiated onto the surface of the nuclear fuel pellet at an angle thereto, parallel light rays are radiated onto the surface from the direction perpendicular thereto, the light reflected from the surface of the object is detected by a detector from the direction perpendicular to the surface, the detected image signal is quantized at a threshold level lower than an average level of the image signal for the normal surface, and the binary signal is used to detect, as a second detection process, a crack and a pit separately from a chip, said crack, pit or chip included in surface missing defects detected in said first detection process. The surface defects of the nuclear fuel pellet or the like are thus detected by separating them into at least three types including a chip, an unground part and a metal inclusion, and a crack and a pit.
摘要翻译： 公开了一种用于检查圆柱形物体的外周表面的装置，其中狭缝形式的光以与其成角度的核燃料芯片的物体的表面上辐射，检测到表面上规则反射的光 通过检测器，检测到的图像信号在高于和低于平均电平的阈值处被量化，并且二进制信号用于与未接地部分和金属夹杂物分开地检测表面损耗作为第一检测处理。 散射光与核燃料芯块的表面成角度地辐射，平行的光线从与其垂直的方向辐射到表面上，从物体的表面反射的光由检测器从垂直的方向 检测到的图像信号在比正常表面的图像信号的平均电平低的阈值处被量化，并且二进制信号用于作为第二检测处理分别检测裂纹和凹坑 在所述第一检测过程中检测到的表面缺失缺陷中包含的裂纹，凹坑或芯片的芯片。 因此，通过将核燃料粒子等的表面缺陷分离为包括芯片，未研磨部分和金属夹杂物以及裂纹和凹坑中的至少三种类型来检测。
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公开(公告)号：US4740351A
公开(公告)日：1988-04-26
申请号：US706342
申请日：1985-02-27
申请人： Kenich Katsumizu , Takashi Sekine , Keiichi Aoki , Keiji Suzuki , Teruaki Mishima , Makoto Udaka , Kojiro Komuro
发明人： Kenich Katsumizu , Takashi Sekine , Keiichi Aoki , Keiji Suzuki , Teruaki Mishima , Makoto Udaka , Kojiro Komuro
CPC分类号： G21C3/334 , G21C21/00 , G21C3/33 , Y02E30/40 , Y10T29/531 , Y10T29/53913
摘要： A fuel assembly has a plurality of fuel rods arranged and held in parallel with one another in the cells of spacer assemblies arranged at suitable intervals. During the assemblying and transportation of the fuel assembly, flexible sleeves are inserted in respective cells such as to separate the fuel rods from parts provided on the walls of the cells, thereby protecting the fuel rod surfaces against any damage and scratch which may otherwise be caused due to interference between the fuel rod surface and the parts provided on the walls of the cell.
摘要翻译： 燃料组件具有多个燃料棒，所述多个燃料棒在以适当间隔排列的间隔组件的单元中彼此平行地布置和保持。 在组装和运输燃料组件期间，将柔性套管插入相应的电池中，以将燃料棒与设置在电池壁上的部分分开，从而保护燃料棒表面免受可能引起的任何损坏和划痕 由于燃料棒表面和设置在电池壁上的部件之间的干涉。
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公开(公告)号：US4748798A
公开(公告)日：1988-06-07
申请号：US861000
申请日：1986-05-08
申请人： Makoto Udaka , Kenji Umezu , Takasi Sekine , Tatsumo Yoshida
发明人： Makoto Udaka , Kenji Umezu , Takasi Sekine , Tatsumo Yoshida
CPC分类号： G21C21/02 , Y10T29/531
摘要： An apparatus for automatically loading one or more kinds of nuclear fuel pellets in fuel cladding tubes for producing nuclear fuel rods comprises at least one pellet transporting tray transferred from a tray stacking unit and provided with a plurality of grooves on which the fuel pellets are mounted, at least one pellet aligning tray provided with a groove selectively connected with one of the grooves of the pellet transporting tray at one end of the aligning tray, and a fuel cladding tube supporting device located in the vicinity of the other end of the aligning tray and adapted to support a number of fuel cladding tubes so that a selected one fuel cladding tube is operatively connected to the aligning tray. The fuel pellets are transferred from the transporting tray into the aligning tray by means of a pushing device and the row of the pellets transferred on the groove of the aligning tray is moved forwardly until it abuts against a stopping mechanism located in association with the aligning tray. The row of pellets is separated at the predetermined portion by a row length defining device so that the separated forward portion of the pellet row has a predetermined length including allowable common difference and then the separated pellet row is loaded into the cladding tube to produce the fuel rod. During these operations the weight of the fuel pellets to be loaded is properly measured.
摘要翻译： 一种用于在用于生产核燃料棒的燃料包壳管中自动加载一种或多种核燃料颗粒的装置包括从托盘堆叠单元转移并设置有多个槽的至少一个颗粒运送托盘，其上安装有燃料颗粒， 至少一个颗粒对准盘，其设置有选择性地与对准盘的一端处的颗粒传送托盘的凹槽中的一个槽连接的凹槽，以及位于对准盘的另一端附近的燃料包层管支撑装置，以及 适于支撑多个燃料包壳管，使得所选择的一个燃料包层管可操作地连接到对准盘。 燃料颗粒通过推动装置从运送托盘传送到对准托盘中，并且转移在对准托盘的凹槽上的一排颗粒向前移动，直到其抵靠与对准托盘相关联的止动机构 。 颗粒排在预定部分处被排长度限定装置分离，使得颗粒排的分离的前部具有包括允许的共同差异的预定长度，然后将分离的颗粒排装载到包壳管中以产生燃料 竿。 在这些操作期间，适当地测量要加载的燃料颗粒的重量。
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