| 基于巴克豪森效应的钢板内部缺陷检测方法 |
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| 引用本文： | 华斌,李平,文玉梅,王亮. 基于巴克豪森效应的钢板内部缺陷检测方法[J]. 传感器与微系统, 2011, 30(1): 50-53 |
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| 作者姓名： | 华斌 李平 文玉梅 王亮 |
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| 作者单位： | 重庆大学,光电工程学院,光电技术及系统教育部重点实验室,重庆,400044 |
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| 基金项目： | 国家自然科学基金资助项目，教育部留学回国人员科研启动基金 |
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| 摘 要： | 阐述了巴克豪森信号用于缺陷检测的原理.根据趋肤效应,提出通过改变交变磁场的频率来调节磁场的穿透深度,实现对铁磁性材料逐层扫描,来完成铁磁材料内部较深缺陷的检测.同时提出用小波多分辨率分析方法进行信号处理.对 A3 钢板的系列实验结果表明:该方法可实现对钢板内空气隙缺陷的检测和定位;用小波多分辨率分析方法处理信号的效果要...
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| 关 键 词： | 巴克豪森效应 穿透深度 缺陷检测 小波多分辨率分析 |
Detection method of steel plate defects based on Barkhausen effect |
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| HUA Bin,LI Ping,WEN Yu-mei,WANG Liang. Detection method of steel plate defects based on Barkhausen effect[J]. Transducer and Microsystem Technology, 2011, 30(1): 50-53 |
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| Authors: | HUA Bin LI Ping WEN Yu-mei WANG Liang |
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| Affiliation: | (College of Opto-electronic Engineering,The Key Laboratory for Opto-electronic Technology & Systems of Ministry of Education,Chongqing University,Chongqing 400044,China) |
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| Abstract: | The principle of defect detection using Barkhausen signals is expounded.According to the skin effect,penetration depth can be adjusted by regulating the frequency of alternating magnetic field,and the defects at deep region of ferromagnetic material can be detected by using serial layer scanning.The method of wavelet multi-resolution analysis is used for signal processing.The experimental results show that the air interstice defects of steel plate can be detected and located using this method,and the signal processing effect of using wavelet multi-resolution analysis is better than that of the traditional methods,such as RMS and peak-peak amplitude algorithm. |
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| Keywords: | Barkhausen effect penetration depth defect detection wavelet multi-resolution analysis root mean square(RMS) |
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