| 用于无损检测的电磁超声换能器研究进展 |
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| 引用本文： | 张勇,陈强,孙振国,汤晓华.用于无损检测的电磁超声换能器研究进展[J].无损检测,2004,26(6):275-279. |
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| 作者姓名： | 张勇 陈强 孙振国 汤晓华 |
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| 作者单位： | 清华大学,机械工程系,北京,100084 |
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| 摘 要： | 电磁超声换能器(EMAT)是一种通过电磁耦合方法产生和接收超声波的换能器。由于EMAT具有非接触性、无需耦合剂等优点,受到广大无损检测与评估工作者的广泛关注。从物理原理出发,介绍了EMAT过程数学建模、装置设计以及工程应用等方面的研究现状,并对其发展趋势作出了展望。
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| 关 键 词： | 电磁超声换能器 无损检测 数学模型 装置设计 |
| 文章编号： | 1000-6656(2004)06-0275-05 |
| 修稿时间： | 2003年11月12 |
DEVELOPMENT OF RESEARCH ON ELECTROMAGNETIC ACOUSTIC TRANSDUCER FOR NONDESTRUCTIVE TESTING |
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| ZHANG Yong,CHEN Qiang,SUN Zhen-guo,TANG Xiao-hua.DEVELOPMENT OF RESEARCH ON ELECTROMAGNETIC ACOUSTIC TRANSDUCER FOR NONDESTRUCTIVE TESTING[J].Nondestructive Testing,2004,26(6):275-279. |
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| Authors: | ZHANG Yong CHEN Qiang SUN Zhen-guo TANG Xiao-hua |
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| Abstract: | An electromagnetic acoustic transducer (EMAT) can produce and receive ultrasonic waves though electromagnetic coupling. The EMAT is characteristic of non-contact and being needing no coupling medium, so it is specially concerned by researchers on nondestructive testing and evaluation. The physical principle of EMAT was presented, and the research status of mathematics modeling, equipment design and engineering applications of EMAT were introduced. |
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| Keywords: | Electromagnetic acoustic transducer Nondestructive testing Mathematic model Equipment design |
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