Chin. Phys. Lett.  2006, Vol. 23 Issue (12): 3294-3296    DOI:
Original Articles |
Shear Wave Field Radiated by an Electromagnetic Acoustic Transducer
WU Di;LI Ming-Xuan;WANG Xiao-Min
Institute of Acoustics, Chinese Academy of Sciences, Beijing 100080
Cite this article:   
WU Di, LI Ming-Xuan, WANG Xiao-Min 2006 Chin. Phys. Lett. 23 3294-3296
Download: PDF(245KB)  
Export: BibTeX | EndNote | Reference Manager | ProCite | RefWorks
Abstract The horizontally polarized ultrasonic shear wave field emitted by an electromagnetic acoustic transducer (EMAT) is studied by the surface force distribution on the EMAT approximately described as an inhomogeneous horizontal shear force. The shear wave directivity pattern is plotted by numerical calculations based on our strictly analytic solutions of the wave field we presented previously. An experimental system of EMAT generation and piezoelectric transducer reception is set up to check the predictions of the theoretical wave field by measuring the ultrasonic signals through aluminium block. The directivity pattern of the wave field obtained from the experimental results conforms the theoretical prediction, which lays a foundation for engineering applications of EMATs.
Keywords: 43.35.+d     
Published: 01 December 2006
PACS:  43.35.+d (Ultrasonics, quantum acoustics, and physical effects of sound)  
TRENDMD:   
URL:  
https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2006/V23/I12/03294
Service
E-mail this article
E-mail Alert
RSS
Articles by authors
WU Di
LI Ming-Xuan
WANG Xiao-Min
Related articles from Frontiers Journals
[1] ZHANG Bi-Xing, SHI Fang-Fang, WU Xian-Mei, GONG Jun-Jie, ZHANG Cheng-Guang. Imaging for Borehole Wall by a Cylindrical Linear Phased Array[J]. Chin. Phys. Lett., 2010, 27(9): 3294-3296
[2] CHENG Li-Ping, ZHANG Shu-Yi, GU Huan-Huan, ZHOU Feng-Mei, SHUI Xiu-Ji. Performance of Non-Contact Linear Actuators Driven by Surface Acoustic Waves*[J]. Chin. Phys. Lett., 2010, 27(7): 3294-3296
[3] LI Yong, HOU Zhi-Lin, FU Xiu-Jun, Badreddine M Assouar. Symmetric and Anti-Symmetric Lamb Waves in a Two-Dimensional Phononic Crystal Plate[J]. Chin. Phys. Lett., 2010, 27(7): 3294-3296
[4] YANG Di-Wu, XING Da, ZHAO Xue-Hui, PAN Chang-Ning, FANG Jian-Shu. A Combined Reconstruction Algorithm for Limited-View Multi-Element Photoacoustic Imaging[J]. Chin. Phys. Lett., 2010, 27(5): 3294-3296
[5] ZHANG Hai-Yan, CHEN Xian-Hua, CAO Ya-Ping, YU Jian-Bo . Focusing of Time Reversal Lamb Waves and Its Applications in Structural Health Monitoring[J]. Chin. Phys. Lett., 2010, 27(10): 3294-3296
[6] HONG Zhen-Yu, XIE Wen-Jun, WEI Bing-Bo. Vibration Characteristics of Acoustically Levitated Object with Rigid and Elastic Reflectors[J]. Chin. Phys. Lett., 2010, 27(1): 3294-3296
[7] AN Zhi-Wu, WANG Xiao-Min, LI Ming-Xuan, DENG Ming-Xi, MAO Jie. Theoretical Development of Nonlinear Spring Models for the Second Harmonics on an Interface between Two Solids[J]. Chin. Phys. Lett., 2009, 26(11): 3294-3296
[8] QIU Chang-Chun, ZHANG Bi-Xing, ZHANG Yu-Jun, CUI Zhi-Wen. Coupling of Acoustical Plane p-Wave to a Cased Borehole[J]. Chin. Phys. Lett., 2009, 26(11): 3294-3296
[9] WEI Wei-Yi, LIU Jin-Xi, FANG Dai-Ning. Existence of Shear Horizontal Surface Waves in a Magneto-Electro-Elastic Material[J]. Chin. Phys. Lett., 2009, 26(10): 3294-3296
[10] CHENG Ying, LIU Xiao-Jun. Extraordinary Resonant Scattering in Imperfect Acoustic Cloak[J]. Chin. Phys. Lett., 2009, 26(1): 3294-3296
[11] ZHOU Chang-Zhi, LI Ming-Xuan, MAO Jie, WANG Xiao-Min. Determination of Thickness of an Inaccessible Thin Film under a Multilayered System from Natural Frequencies[J]. Chin. Phys. Lett., 2008, 25(4): 3294-3296
[12] ZHANG Shi-Gong, HU Wen-Xiang. Laser Generation of Surface Waves on Cylinder with a Slow Coating[J]. Chin. Phys. Lett., 2008, 25(12): 3294-3296
[13] CHEN Huan-Yang, YANG Tao, LUO Xu-Dong, MA Hong-Ru. Impedance-Matched Reduced Acoustic Cloaking with Realizable Mass and Its Layered Design[J]. Chin. Phys. Lett., 2008, 25(10): 3294-3296
[14] NI Qing, CHENG Jian-Chun. Homogenization of Three-Dimensional Periodic Solid--Solid Elastic Composites[J]. Chin. Phys. Lett., 2007, 24(3): 3294-3296
[15] MAO Jie, LI Ming-Xuan, WANG Xiao-Min. Thickness Determination for a Two-Layered Composite of a Film and a Plate by Low-Frequency Ultrasound[J]. Chin. Phys. Lett., 2007, 24(3): 3294-3296
Viewed
Full text


Abstract