Controls of pass-bands in asymmetric acoustic transmission

被引：0
|
作者：
孙宏祥 [1 ,2 ,3 ]
张淑仪 [1 ]
袁寿其 [2 ]
机构：
[1] Laboratory of Modern Acoustics,Institute of Acoustics,Collaborative Innovation Center of Advanced Microstructures,Nanjing University
[2] Research Center of Fluid Machinery Engineering and Technology,Jiangsu University
[3] State Key Laboratory of Acoustics,Institute of Acoustics,Chinese Academy of Sciences
来源：
Chinese Physics B | 2016年 / 12期
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
asymmetric acoustic transmission; pass-band control; grating diffraction; Lamb mode;
D O I：
暂无
中图分类号：
O422 [声的传播];
学科分类号：
摘要：
The controls of the pass-bands in an asymmetric acoustic transmission system are investigated numerically and experimentally, and the system consists of a periodical rectangular grating and two uniform brass plates in water. We reveal that the pass-band of the asymmetric acoustic transmission is closely related to the grating period, but is affected slightly by the brass plate thickness. Moreover, the transmittance can be improved by adjusting the grating period and other structural parameters simultaneously. The control method of the system has the advantages of wider frequency range and simple operation, which has great potential applications in ultrasonic devices.
引用
收藏
页码：96 / 101
页数：6
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