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首页> 外文会议>ASME(American Society of Mechanical Engineers) Pressure Vessels and Piping Conference 2006 vol.5: High-Pressure Technology... >Image of Defects in Pipe by Guided Wave Technique
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Image of Defects in Pipe by Guided Wave Technique

机译：导波技术在管道中的缺陷图像

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摘要

Based on a guided wave technique and a dispersive waveform prediction method, this paper presents a method which can be used to image defects in pipes. According to this method, a non-axis symmetrical end loading transducer can be used to excite an L (0, 2) mode and receive its echo at one end of the pipe. By rotating the said transducer with a specific space in the circumferential direction of said end and then operating the said transducer, twenty-four received signals can be obtained so as to image and locate those defects. Finally, we concluded that it is effective to image and recognize defects in two kinds of pipes including a one-holed pipe and a two-partially-circumferential-notched pipe using the presented method.
机译：基于导波技术和色散波形预测方法，本文提出了一种可用于管道缺陷成像的方法。根据此方法，可以使用非轴对称端部载荷传感器来激发L（0，2）模式并在管道的一端接收其回波。通过沿所述端部的圆周方向以特定的间隔旋转所述换能器，然后操作所述换能器，可以获得二十四个接收到的信号，以成像并定位那些缺陷。最后，我们得出的结论是，使用所提出的方法可以有效地成像和识别两种类型的管道中的缺陷，包括单孔管道和两部分周向切口的管道。

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