Experimental research on defect detection of steel pipe based on electromagnetic ultrasonic torsional wave

WANG Yu-gang; WANG Li; WU Xin-jun

doi:10.13873/j.1000-97872014.02.003

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Experimental research on defect detection of steel pipe based on electromagnetic ultrasonic torsional wave

更新时间：2025-09-11

- Experimental research on defect detection of steel pipe based on electromagnetic ultrasonic torsional wave
- Vol. 33, Issue 2, Pages: 23-25(2014)
- 作者机构：
  
  华中科技大学机械科学与工程学院
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-97872014.02.003
  CLC： TG115.284
- Published：2014
- 稿件说明：
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[1]汪玉刚,王丽,武新军.电磁超声扭转波检测钢管缺陷的实验研究[J].传感器与微系统,2014,33(02):23-25.

WANG Yu-gang, WANG Li, WU Xin-jun. Experimental research on defect detection of steel pipe based on electromagnetic ultrasonic torsional wave[J]. 2014, 33(2): 23-25.
[1]汪玉刚,王丽,武新军.电磁超声扭转波检测钢管缺陷的实验研究[J].传感器与微系统,2014,33(02):23-25. DOI： 10.13873/j.1000-97872014.02.003.

WANG Yu-gang, WANG Li, WU Xin-jun. Experimental research on defect detection of steel pipe based on electromagnetic ultrasonic torsional wave[J]. 2014, 33(2): 23-25. DOI： 10.13873/j.1000-97872014.02.003.

摘要

扭转模态T（0

1）超声导波具有无频散的特点

便于信号分析与处理。在分析电磁超声扭转波传感器换能原理的基础上

搭建了电磁超声扭转波钢管缺陷检测实验平台

采用350 kHz的T（0

1）模态导波

在Ф25 mm×2800 mm壁厚2.5 mm的钢管上检测出20%壁厚损失的周向平底刻槽与Ф5 mm通孔缺陷

检测信号的信噪比较高。实验结果表明:这种电磁超声扭转波方法可以应用于钢管缺陷检测。

Abstract

The T（0

1） mode ultrasonic guided wave of torsional mode has a feature of no dispersion

which makes it convenient to analyze and process signals.On the basis of analyzing transducing principle of electromagnetic ultrasonic torsional wave transducer

a laboratory platform for steel pipe defects detection is built.The T（0

1） mode guided wave of 350 kHz is used to detect the circumferential flat base notch with 20 % wall thickness loss and the through-hole defect of Ф 5 mm in a 2.8 meter-long steel pipe of Ф 25 mm whose wall thickness is 2.5 mm

signal-to-noise of detecting signal is high.Experimental results show that the method of electromagnetic ultrasonic torsional wave can be used to detect steel pipe defects.

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references

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