Apparatus and method for monitoring a cable
    5.
    发明授权
    Apparatus and method for monitoring a cable 有权
    用于监测电缆的装置和方法

    公开(公告)号:US06873746B2

    公开(公告)日:2005-03-29

    申请号:US09923256

    申请日:2001-08-02

    摘要: In one embodiment the present invention provides a device for monitoring a cable, comprising an imaging device having a field of view; a target, distinguishable within the field of view of the imaging device, associated with a cable; and a computer processor connected to the imaging device for analyzing images of the target produced by the imaging device to determine a position of the cable. In another embodiment, the present invention provides a method for monitoring a cable, comprising calibrating a first image of a predetermined field of view showing a portion of a cable to be monitored; capturing a second image of the predetermined field of view; correlating the first image with the second image to determine a position of the portion of the cable within the second image; and reporting said position.

    摘要翻译: 在一个实施例中,本发明提供了一种用于监测电缆的装置,包括具有视野的成像装置; 在与成像装置的视野范围内可区分的目标,与电缆相关联; 以及连接到成像装置的计算机处理器,用于分析由成像装置产生的目标的图像,以确定电缆的位置。 在另一个实施例中,本发明提供了一种用于监视电缆的方法,包括校准表示要监视的电缆的一部分的预定视场的第一图像; 捕获预定视野的第二图像; 将所述第一图像与所述第二图像相关联以确定所述电缆在所述第二图像内的所述部分的位置; 并报告该职位。

    Cable tensioning device
    6.
    发明授权
    Cable tensioning device 失效
    电缆张紧装置

    公开(公告)号:US5454272A

    公开(公告)日:1995-10-03

    申请号:US192435

    申请日:1994-02-07

    IPC分类号: G01L5/04 G01L5/00

    CPC分类号: G01L5/042

    摘要: A non-destructive method for tensioning a cable under tension is described whereby the cable is contacted with an impact stimulus with a force transverse to the length of the cable thereby creating an incident vibrational wave in the cable and propagating the wave along the length of the cable. The propagating wave is sensed by a first accelerometer positioned on the cable which detects the passage and amplitude of the wave and creates electrical signals having a magnitude directly proportional to the amplitude of the wave. A second accelerometer which is positioned at a distance apart from the first accelerometer subsequently senses and detects the passage of the wave at the second accelerometer, also creating electrical signals having a magnitude directly proportional to the amplitude of the wave. The electrical signals from the accelerometers are received and processed to ultimately calculate the tension in the cable.

    摘要翻译: 描述了用于在张力下张紧电缆的非破坏性方法,由此电缆以横向于电缆长度的力与冲击刺激物接触,从而在电缆中产生入射振动波,并沿着长度方向传播波 电缆。 传播波被位于电缆上的第一加速度计感测,该第一加速度计检测波的通过和振幅,并产生具有与波幅成正比的幅度的电信号。 定位在与第一加速度计相距一定距离处的第二加速度计随后感测并检测波在第二加速度计上的通过,同时产生具有与波幅成正比的幅度的电信号。 来自加速度计的电信号被接收和处理以最终计算电缆中的张力。