基于小波分析的脉冲涡流/电磁超声复合无损检测方法

中国机械工程

基于小波分析的脉冲涡流/电磁超声复合无损检测方法

田明明1;解社娟1,2;韩捷3,4;李鹏2;裴翠祥1;陈振茂1

1.西安交通大学机械结构强度与振动国家重点实验室，陕西省无损检测结构完整性评价工程技术中心，西安，710049
2.新疆维吾尔自治区特种设备检验研究院，乌鲁木齐，830011
3.核动力运行研究所，武汉，430074
4.中核武汉核电运行技术股份有限公司，武汉，430223

出版日期:2019-08-25 发布日期:2019-08-27
基金资助:
新疆维吾尔自治区科技支疆项目(2019E0239);
国家自然科学基金资助项目(51877163，51577139)；
中国博士后科学基金资助项目(2018M641035)

A Hybrid PECT/EMAT NDT Based on Wavelet Analysis

TIAN Mingming1;XIE Shejuan1,2; HAN Jie3,4;LI Peng2;PEI Cuixiang1;CHEN Zhenmao1

1.Shaanxi Engineering Research Center of Nondestructive Testing and Structural Integrity Evaluation,State Key Laboratory for Strength and Vibration of Mechanical Structures,Xi'an Jiaotong University, Xi'an, 710049
2.The Xinjiang Uygur Autonomous Region Special Equipment Inspection and Research Institute, Urumqi,830011
3.Research Institute of Nuclear Power Operation, Wuhan，430074
4.China Nuclear Power Operation Technology Co., Ltd., Wuhan，430223

Online:2019-08-25 Published:2019-08-27

摘要/Abstract

摘要： 为了有效利用电磁超声中的脉冲涡流信号，实现电磁超声、脉冲涡流检测方法对缺陷检测的优缺互补，提出了一种基于小波分析的脉冲涡流/电磁超声复合无损检测方法，并结合数值仿真和实验验证了所提方法的有效性。

关键词: 脉冲涡流/电磁超声, 复合无损检测, 信号分离提取, 小波分析

Abstract: To effectively utilize pulse eddy current signal parts in electromagnetic acoustic signals and complement the advantages of EMAT and PECT method in detection, a new hybrid NDT method of PECT/EMAT was proposed based on wavelet analysis. The effectiveness of the proposed method was verified by the numerical simulations and experiments.

Key words: pulse eddy current testing/electromagnetic acoustic transducer(PECT/EMAT), hybrid nondestructive testing (NDT), signal separation and extraction, wavelet analysis

中图分类号:

TG115.28

田明明1;解社娟1,2;韩捷3,4;李鹏2;裴翠祥1;陈振茂1. 基于小波分析的脉冲涡流/电磁超声复合无损检测方法[J]. 中国机械工程.

TIAN Mingming1;XIE Shejuan1,2; HAN Jie3,4;LI Peng2;PEI Cuixiang1;CHEN Zhenmao1. A Hybrid PECT/EMAT NDT Based on Wavelet Analysis[J]. China Mechanical Engineering.

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