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    • 6. 发明公开
      EP0104655A1 Ultrasonic flaw detector driving apparatus of a trackless type 失效
    • Ultrasonic flaw detector driving apparatus of a trackless type
    • 用于超声波探伤器似乎较少驱动器。
    • EP0104655A1
    • 1984-04-04
    • EP83109687.0
    • 1983-09-28
    • HITACHI, LTD.
    • Tsuchita, Kenji , Domon, Kozo , Takahashi, Fuminobu
    • G01N29/00
    • B82Y15/00 , G01N29/265 , G01N2291/2634
    • An ultrasonic flaw detector driving apparatus with no guide rail type including a traveling member (2) capable of being freely mounted to and dismounted from piping (1) to be inspected, and a turning member (3) detachably attached to the traveling member (2) for turning movement thereabout. The traveling member (2) is equipped with a multiplicity of sets of traveling rolling elements (9), maintained in contact with an outer peripheral surface of the piping (1) and spaced apart from one another circumferentially of the piping while the traveling rolling elements (9) of each set which are two in number are spaced apart from each other axially of the traveling member (2). The turning member (3) is equipped with at least one ultrasonic wave probe (4) which scans the outer peripheral surface of the piping (1) to inspect it. As the traveling rolling elements (9,) are rotated, the traveling member (2) travels on the pipe (1) axially thereof, and the turning member (3) moves in turning movement about the traveling member (2) as it is driven, so that the ultrasonic wave probe (4) can scan both axially and circumferentially of the piping (1) to inspect the whole area of the outer peripheral surface of the piping (1).
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Global Dossier Espacenet 法律信息 同族专利 专利引用
    • 7. 发明公开
      EP0018079A1 Digital type ultrasonic holographic apparatus 失效
    • Digital type ultrasonic holographic apparatus
    • 数码相机Ultraschall-Holographiegerät。
    • EP0018079A1
    • 1980-10-29
    • EP80300767.3
    • 1980-03-12
    • Hitachi, Ltd.
    • Takahashi, Fuminobu , Suzuki, Kazumichi
    • G01N29/00 , G01N29/04 , G03H3/00
    • G01N29/0663 , G01N29/343
    • A digital type ultrasonic holograph apparatus is provided utilizing a clock pulse generator (12) having a predetermined periodicity, a trigger pulse generator (14) driving a spike pulse generator (15) for producing an ultrasonic pulse beam which is directed by means of a probe (1) on to an object for measurement in synchronism with said clock pulse, a waveform shaping circuit (18) for converting reflected ultrasonic pulse beams from said object for measurement into digital pulses, a time coincidence signal detector (13) for detecting time coincidence between said clock pulse and said digital pulses contained in a predetermined gate period and producing as an output a coincidence signal when they coincide with each other, a scanner (11) for moving an ultrasonic generating and receiving probe (1) to a desired position, and a display device (19) for displaying the hologram of said object for measurement using said coincidence signal as a luminance signal and a position signal of said ultrasonic generating and receiving probe (1) as a deflection signal of said luminance signal. Using this holography apparatus a hologram of said object for measurement is displayed in a fringe pattern and the position and shape of said object for measurement are measured from those of the fringe pattern.
    • 使用具有预定周期的时钟脉冲发生器（12）提供数字型超声全息设备，触发脉冲发生器（14）驱动尖峰脉冲发生器（15），用于产生通过探头引导的超声脉冲光束 （1）与所述时钟脉冲同步的测量对象，用于将来自所述测量对象的反射超声脉冲光束转换为数字脉冲的波形整形电路（18），用于检测时间符合的时间同步信号检测器（13） 在所述时钟脉冲和包含在预定门限周期中的所述数字脉冲之间并且当它们彼此一致时产生作为输出的一致信号;用于将超声波发生和接收探针（1）移动到期望位置的扫描器（11） 以及显示装置（19），用于使用所述一致信号显示所述测量对象的全息图作为亮度信号和所述超声波的位置信号 发声和接收探头（1）作为所述亮度信号的偏转信号。 使用该全息设备，所述测量对象的全息图以条纹图案显示，并且所述测量对象的位置和形状是从条纹图案的位置和形状测量的。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Global Dossier Espacenet 法律信息 同族专利 专利引用
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