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超声导波电磁声换能器的研究进展

刘增华 谢穆文 钟栩文 龚裕 何存富 吴斌

刘增华, 谢穆文, 钟栩文, 龚裕, 何存富, 吴斌. 超声导波电磁声换能器的研究进展[J]. 机械工程学报, 2017, 43(2): 192-202. doi: 10.11936/bjutxb2016080062
引用本文: 刘增华, 谢穆文, 钟栩文, 龚裕, 何存富, 吴斌. 超声导波电磁声换能器的研究进展[J]. 机械工程学报, 2017, 43(2): 192-202. doi: 10.11936/bjutxb2016080062
LIU Zenghua, XIE Muwen, ZHONG Xuwen, GONG Yu, HE Cunfu, WU Bin. Research Progress of Electromagnetic Acoustic Transducers for Ultrasonic Guided Waves Inspection[J]. JOURNAL OF MECHANICAL ENGINEERING, 2017, 43(2): 192-202. doi: 10.11936/bjutxb2016080062
Citation: LIU Zenghua, XIE Muwen, ZHONG Xuwen, GONG Yu, HE Cunfu, WU Bin. Research Progress of Electromagnetic Acoustic Transducers for Ultrasonic Guided Waves Inspection[J]. JOURNAL OF MECHANICAL ENGINEERING, 2017, 43(2): 192-202. doi: 10.11936/bjutxb2016080062

超声导波电磁声换能器的研究进展

doi: 10.11936/bjutxb2016080062
基金项目: 国家自然科学基金资助项目(11527801,51475012,11272021);北京市属高等学校高层次人才引进与培养计划项目(CIT&TCD201304048)
详细信息
    作者简介:

    作者简介: 刘增华(1973—), 男, 教授, 博士生导师, 主要从事超声无损检测新技术、结构健康监测及传感器测试技术方面的研究, E-mail:liuzenghua@bjut.edu.cn

  • 中图分类号: TB552

Research Progress of Electromagnetic Acoustic Transducers for Ultrasonic Guided Waves Inspection

  • 摘要: 超声导波具有检测范围大、检测效率高等优点,广泛应用于板、管等典型波导结构的缺陷检测. 作为超声导波换能器类型之一,电磁声换能器(electromagnetic acoustic transducer,EMAT)得到广泛关注和快速发展. 综述了近20年来超声导波电磁声换能器的研究进展. 主要包括:针对板和管结构超声导波检测的单模态EMAT结构设计;用于提高激励导波的能量和模态单一性的EMAT线圈与磁体结构参数的优化,针对非金属材料检测的新型贴片式EMAT的结构设计;阵列技术在EMAT性能优化上的应用和在缺陷定位和成像上的应用.

     

  • 图  超声导波群速度频散曲线

    Figure  1.  Group velocity dispersion curves of ultrasonic guided waves

    图  EMAT的工作机理

    Figure  2.  Working mechanisms of EMATs

    图  S0模态EMATs

    Figure  3.  S0 mode EMATs

    图  A0模态EMATs

    Figure  4.  A0 mode EMATs

    图  SH0模态EMATs

    Figure  5.  SH0 mode EMATs

    图  纵向模态磁致伸缩EMAT

    Figure  6.  Longitudinal mode magnetostrictive EMAT

    图  纵向模态磁致伸缩EMAT阵列的结构[30]

    Figure  7.  Configuration of longitudinal mode magnetostrictive EMAT array

    图  扭转模态磁致伸缩换能器阵列结构[37]

    Figure  8.  Configuration of torsional mode MPT array

    图  130kHz时Lamb波模态LFPT的检测信号

    Figure  9.  Measured signal at 130kHz employing Lamb wave mode LFPT

    图  10  基于EMAT阵列的板结构缺陷检测[54]

    Figure  10.  Plate-structure defect detection using EMAT array

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出版历程
  • 收稿日期:  2016-08-29
  • 网络出版日期:  2022-09-13
  • 刊出日期:  2017-02-01

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