菲轴对称局部加载激励接收超声导波的实验研究

Experimental Study on Excitation and Reception of Ultrasonic Guided Waves With Non-axisymmetric Partial Loading

为了检测表面只能局部接触管道中的缺陷,通过实验的方法,研究了在管道外表面采用非轴对称局部 加载激励接收超声导波进行管道检测的可行性和表面加载角度对超声导波激励接收的影响,探索了采用非轴对 称激励接收方式,减少传感器数量进行管道超声导波检测的方法。

For detecting defects in pipe which surface can only be attachable to partly, feasibility of pipe inspection using ultrasonic guided waves excited by non-axisymmetric partial loading on the pipe surface is studied in the experiment. Result shows that circumferential loading angle effects on exciting and reception of ultrasonic guided waves. The method of decreasing the number of transducers using non-axisymmetric exciting and reception of ultrasonic guided waves to pipe inspection is explored.