Machine implemented analysis eddy current data
    1.
    发明授权
    Machine implemented analysis eddy current data 失效
    机器实现分析涡流数据

    公开(公告)号:US4763274A

    公开(公告)日:1988-08-09

    申请号:US878095

    申请日:1986-06-24

    CPC分类号: G01N27/9093 G01N27/9046

    摘要: A digital computer performs a complete eddy current analysis of the tubes of a steam generator from data input to generation of a final report. The computer extracts signatures generated by various structural features and tube defects from the data, breaks down composite signatures into their component parts and classifies each such signature by applying thereto a cascading set of experience based rules. Signatures classified as structural features are examined closely for the presence of colocated tube defects. A post processor correlates the location of the indication identified from the time based eddy current data with the known physical location of the structural features so that the position of the defects can be presented in terms of distances from fixed structures.

    摘要翻译: 数字计算机根据从最终报告生成的数据输入对蒸汽发生器的管进行完整的涡流分析。 计算机从数据中提取由各种结构特征和管缺陷产生的签名,将复合签名分解成其组成部分,并通过向其应用级联的基于经验的规则集合对每个这样的签名进行分类。 分类为结构特征的签名被密切检查是否存在共定位管缺陷。 后处理器将从基于时间的涡流数据识别的指示的位置与结构特征的已知物理位置相关联,使得可以根据与固定结构的距离来呈现缺陷的位置。

    Robotic system for servicing the heat exchanger tubes of a nuclear steam
generator
    2.
    发明授权
    Robotic system for servicing the heat exchanger tubes of a nuclear steam generator 失效
    用于维修核蒸汽发生器的热交换器管的机器人系统

    公开(公告)号:US5355063A

    公开(公告)日:1994-10-11

    申请号:US607705

    申请日:1990-11-01

    CPC分类号: B25J9/1025 F22B37/005

    摘要: An improved robotic arm system for servicing the tubesheet located within the channel head of a nuclear steam generator is provided. The system includes a robotic arm whose shoulder and elbow joints are rotatable only in the plane parallel to the tubesheet in order to eliminate the imposition of cantileverly-induced torques on the electric motors driving these joints, as well as to minimize the possibility of mechanical interference between the arm and the walls of the channel head. Each of the motorized joint assemblies of the arm includes resolvers connected not only to the output of the drive train that moves the joint, but also to the drive shaft of the electric motor that drives the drive train, wherein the feedback signal generated by the resolver connected to the drive shaft of the electric motor is the primary signal used to modulate the amount of electric power conducted to the motor of the joint. Such a configuration advantageously results in smoother robotic arm movement. Finally, the control circuit assembly of the robotic arm system includes a control processing unit (CPU) which is capable of simultaneously driving not only the joint assemblies of the robotic arm, but also any computer-operated mechanisms associated with a variety of end effectors which the arm is capable of delivering. The CPU, power supply and other components of the control circuit assembly are installable in the containment area surrounding the steam generator in order to eliminate the number of cable penetrations through the containment walls that are necessary to operate the system.

    摘要翻译: 提供了一种用于维修位于核蒸汽发生器的通道头内的管板的改进的机器臂系统。 该系统包括机器臂,其肩部和肘关节只能在与管板平行的平面中旋转,以消除在驱动这些关节的电动机上施加悬臂诱导扭矩,并且最小化机械干扰的可能性 在手臂和通道头部的墙壁之间。 臂的每个电动接头组件都包括不仅连接到传动系的输出的旋转变压器,该传动系的运动使接头移动,而且还连接到驱动传动系的电动机的驱动轴,其中,旋转变压器产生的反馈信号 连接到电动机的驱动轴的是用于调制传导到接头的电动机的电力量的主要信号。 这种配置有利地导致更平滑的机器人手臂运动。 最后,机器臂系统的控制电路组件包括一个控制处理单元(CPU),该控制处理单元能够不仅同时驱动机器臂的接头组件,而且还可以驱动与各种终端执行器相关联的任何计算机操作的机构, 手臂能够交付。 控制电路组件的CPU,电源和其他组件可安装在蒸汽发生器周围的容纳区域中,以消除操作系统所需的通过密封壁的电缆穿透次数。