Experimental verification of manipulating propagation directions of transmitted waves in asymmetric acoustic transmission

被引：0
|
作者：
Hong-xiang Sun
Shu-yi Zhang
Shou-qi Yuan
Jian-ping Xia
机构：
[1] Jiangsu University,Research Center of Fluid Machinery Engineering and Technology
[2] Nanjing University,Lab of Modern Acoustics, Institute of Acoustics, Collaborative Innovation Center of Advanced Microstructures
[3] Chinese Academy of Sciences,State Key Laboratory of Acoustics, Institute of Acoustics
来源：
Applied Physics A | 2016年 / 122卷
关键词：
Transmission Spectrum; Propagation Direction; Plate Thickness; Diffract Angle; Transmitted Wave;
D O I：
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中图分类号：
学科分类号：
摘要：
The manipulation of the propagation directions of the transmitted waves in an acoustic system with asymmetric acoustic transmission is investigated numerically and experimentally, in which the system consists of a brass plate and a periodical grating immersed in water. It is experimentally demonstrated that the propagation angles of the transmitted waves are close to those of ±1-order diffractions in the pass-band of the asymmetric acoustic transmission, and thus, the manipulation of the propagation directions of the transmitted waves is realized by adjusting the grating period and plate thickness. Our scheme may open up an avenue to the design of tunable unidirectional acoustic devices.
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