Pipeline inspection pigs
    3.
    发明申请
    Pipeline inspection pigs 审中-公开
    管线检查猪

    公开(公告)号:US20050072237A1

    公开(公告)日:2005-04-07

    申请号:US10488555

    申请日:2002-09-03

    摘要: A pipeline inspection pig for locating crack-like defects (10) in pipeline walls (8) comprises at least one transmit transducer (T) for transmitting ultrasound energy into the pipeline wall (8), and at least one associated receive transducer (R) located adjacent the transmit transducer (T), the arrangement being such that, for a given defect (10) in the pipeline wall (8), ultrasound energy within the pipeline wall (8) is incident on the defect (10), part of said energy being reflected by the defect (10) back to the receive transducer (8) in the form of a first data stream, and the remainder of said energy passing through the defect (10) to be attenuated thereby and thence returned to the receive transducer (R) in the form of a second data stream, interpretation of the first and second data streams enabling the location of the defect (10) to be determined.

    摘要翻译: 用于在管道壁(8)中定位裂缝状缺陷(10)的管道检查猪包括用于将超声能量发射到管道壁(8)中的至少一个发射换能器(T),以及至少一个相关联的接收换能器(R) 位于发射换能器(T)附近,该布置使得对于管道壁(8)中的给定缺陷(10),管道壁(8)内的超声能量入射到缺陷(10)上,部分 所述能量被缺陷(10)以第一数据流的形式反射回接收换能器(8),并且所述能量的剩余部分通过缺陷(10)被衰减,从而返回到接收 换能器(R)以第二数据流的形式,能够确定缺陷(10)的位置的第一和第二数据流的解释。