| 磁致伸缩效应及其在无损检测中的应用研究 |
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| 引用本文： | 王悦民,康宜华,武新军.磁致伸缩效应及其在无损检测中的应用研究[J].华中科技大学学报(自然科学版),2005,33(1):75-77. |
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| 作者姓名： | 王悦民 康宜华 武新军 |
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| 作者单位： | 华中科技大学,机械科学与工程学院,湖北,武汉,430074;华中科技大学,机械科学与工程学院,湖北,武汉,430074;华中科技大学,机械科学与工程学院,湖北,武汉,430074 |
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| 基金项目： | 湖北省自然科学基金资助项目 (2 0 0 4ABA0 2 8) . |
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| 摘 要： | 对磁致伸缩效应及其起源机制进行了探讨．阐述了磁致伸缩效应的管道检测原理，可归纳为弹性波的产生是基于磁致伸缩效应，弹性波的检测是基于磁致伸缩逆效应．对长约为6．716m，外径38mm，壁厚2．5mm的样本钢管进行模拟缺陷检测，给出了所获得的检测信号．检测结果表明应用这种方法对钢管缺陷进行无损检测是可行的．该实验装置简单，安装方便，而且可对很长的钢管进行快速、大范围检测．
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| 关 键 词： | 磁致伸缩效应 无损检测 钢管 |
| 文章编号： | 1671-4512(2005)01-0075-03 |
| 修稿时间： | 2004年4月16日 |
Magnetostrictive effect and its application to NDT |
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| Wang Yuemin,Kang Yihua,Wu Xinjun.Magnetostrictive effect and its application to NDT[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2005,33(1):75-77. |
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| Authors: | Wang Yuemin Kang Yihua Wu Xinjun |
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| Institution: | Wang Yuemin Kang Yihua Wu Xinjun Wang Yuemin Doctoral Candidate, College of Mech. Sci. & Eng.,Huazhong Univ. of Sci. & Tech.,Wuhan 430074,China. |
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| Abstract: | The magnetostrictive effect and its origin mechanism was discussed. Based on magnetostrictive effect, the pipe detection principle was described. It can be summarized as follows: elastic wave generation is based on the magnetostrictive effect and elastic wave detection is based on the inverse magnetostrictive effect . Signals acquired from a steel pipe, which is approximately 6.716?m long, with the diameter of 38?mm and wall thick of 2.5?mm, inducing a simulated defect were given. The experimental results show this method is feasible. The experimental setup is simple, easy to be assembled and capable of rapid and long range inspection of a long segment steel pipe. |
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| Keywords: | magnetostrictive effect non-destructive test (NDT) steel pipe |
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