| 表面波电磁声换能器的设计 |
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| 引用本文： | 申建中,张仲宁,张淑仪.表面波电磁声换能器的设计[J].应用声学,2007,26(4):197-201. |
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| 作者姓名： | 申建中 张仲宁 张淑仪 |
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| 作者单位： | 近代声学重点实验室,南京大学声学研究所,南京,210093 |
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| 摘 要： | 简要介绍了产生表面波的电磁声换能器（EMAT）的工作原理，设计，制作了收发分开的两种EMAT，并建立了实验测试系统、测量了信号和发射EMAT提离距离的关系曲线，研究了激励脉冲个数、接收线圈的匝数对换能器信号的影响等。
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| 关 键 词： | 电磁声换能器EMAT 回折线圈 |
| 修稿时间： | 2006-06-022007-04-23 |
Design of surface wave electromagnetic acoustic transtucers |
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| SHEN Jian-Zhong,ZHANG Zhong-Ning and ZHANG Shu-Yi.Design of surface wave electromagnetic acoustic transtucers[J].Applied Acoustics,2007,26(4):197-201. |
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| Authors: | SHEN Jian-Zhong ZHANG Zhong-Ning and ZHANG Shu-Yi |
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| Institution: | Laboratory of Modern Acoustics, Institute of Acoustlcs, Wanting Nanjing University, Najing 210093 |
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| Abstract: | The working principle of electromagnetic acoustic transducers(EMATs)is presented briefly.The exciting and receiving EMATs have been designed and fabricated, and an experimental system has been established.The received signal-distance relation- ship and the influences of the emitted pulse number and the number of turns of the receive coil on the signal of the transducers are also given in this paper. |
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| Keywords: | Electromagnetic acoustic transducer(EMAT) Meandered line coil |
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