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    • 4. 发明申请
    • METHOD AND APPARATUS FOR ULTRASONICALLY INSPECTING PIPES
    • 用于超声波检查管道的方法和装置
    • US20090158850A1
    • 2009-06-25
    • US12298333
    • 2007-04-24
    • David AlleyneSteve BanksBrian Pavlakovic
    • David AlleyneSteve BanksBrian Pavlakovic
    • G01N29/265
    • G01N29/265G01N29/221G01N29/225G01N29/28G01N2291/106G01N2291/2636
    • An apparatus for inspecting a pipe comprising a body adapted for passage through the bore of a pipe to be inspected, a main transducer array comprising a plurality of circumferentially spaced transducers for transmitting ultrasound energy, the transducers being mounted on the body for movement between a retracted position, wherein the body can freely move through the bore of the pipe, and an extended position wherein the plurality of transducers are pressed into operative contact with the inner wall of the pipe. An actuator selectively urges the plurality of transducers to their extended positions. A control transmits ultrasound energy into the pipe to propagate a guided wave within the pipe walls in at least one longitudinal direction along the pipe when the transducers are in their operative position and receives the propagated wave and analyzes the wave to determine the presence or absence of defects in the pipe wall.
    • 一种用于检查管道的装置,其包括适于通过待检查管道的孔的主体,主换能器阵列,包括用于传输超声能量的多个周向间隔的换能器,所述换能器安装在所述主体上以在缩回 位置,其中主体可以自由地移动通过管的孔,以及延伸位置,其中多个换能器被压入与管的内壁有效接触。 致动器选择性地将多个换能器推送到它们的伸出位置。 当换能器处于其操作位置并且接收传播的波并且分析波以确定是否存在或不存在时,控制器将超声波能量传递到管中以沿着管道在至少一个纵向方向上在管壁内传播导波 管壁缺陷。
    • 6. 发明授权
    • Method and apparatus for ultrasonically inspecting pipes
    • 超声波检查管道的方法和装置
    • US08356518B2
    • 2013-01-22
    • US12298333
    • 2007-04-24
    • David AlleyneSteve BanksBrian Pavlakovic
    • David AlleyneSteve BanksBrian Pavlakovic
    • G01N29/24
    • G01N29/265G01N29/221G01N29/225G01N29/28G01N2291/106G01N2291/2636
    • An apparatus for inspecting a pipe comprising a body adapted for passage through the bore of a pipe to be inspected, a main transducer array comprising a plurality of circumferentially spaced transducers for transmitting ultrasound energy, the transducers being mounted on the body for movement between a retracted position, wherein the body can freely move through the bore of the pipe, and an extended position wherein the plurality of transducers are pressed into operative contact with the inner wall of the pipe. An actuator selectively urges the plurality of transducers to their extended positions. A control transmits ultrasound energy into the pipe to propagate a guided wave within the pipe walls in at least one longitudinal direction along the pipe when the transducers are in their operative position and receives the propagated wave and analyzes the wave to determine the presence or absence of defects in the pipe wall.
    • 一种用于检查管道的装置,其包括适于通过待检查管道的孔的主体,主换能器阵列,包括用于传输超声能量的多个周向间隔的换能器,所述换能器安装在所述主体上以在缩回 位置,其中主体可以自由地移动通过管的孔,以及延伸位置,其中多个换能器被压入与管的内壁有效接触。 致动器选择性地将多个换能器推送到它们的伸出位置。 当换能器处于其操作位置并且接收传播的波并且分析波以确定是否存在或不存在时,控制器将超声波能量传递到管中以沿着管道在至少一个纵向方向上在管壁内传播导波 管壁缺陷。