中国物理B ›› 2016, Vol. 25 ›› Issue (12): 124313-124313.doi: 10.1088/1674-1056/25/12/124313

• SPECIAL TOPIC—Acoustics • 上一篇    下一篇

Controls of pass-bands in asymmetric acoustic transmission

Hong-Xiang Sun(孙宏祥), Shu-Yi Zhang(张淑仪), Shou-Qi Yuan(袁寿其)   

  1. 1. Laboratory of Modern Acoustics, Institute of Acoustics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China;
    2. Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang 212013, China;
    3. State Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China
  • 收稿日期:2015-11-13 修回日期:2016-03-20 出版日期:2016-12-05 发布日期:2016-12-05
  • 通讯作者: Hong-Xiang Sun, Shu-Yi Zhang E-mail:jsdxshx@ujs.edu.cn;zhangsy@nju.edu.cn
  • 基金资助:

    Project supported by the National Basic Research Program of China (Grant No. 2012CB921504), the Major Program of the National Natural Science Foundation of China (Grant No. 51239005), the National Natural Science Foundation of China (Grant Nos. 11174142 and 11404147), the Natural Science Foundation of Jiangsu Province, China (Grant No. BK20140519), the China Postdoctoral Science Foundation (Grant No. 2015M571672), the Training Project of Young Backbone Teachers of Jiangsu University, China, and the Research Fund for Advanced Talents of Jiangsu University, China (Grant No. 13JDG106).

Controls of pass-bands in asymmetric acoustic transmission

Hong-Xiang Sun(孙宏祥)1,2,3, Shu-Yi Zhang(张淑仪)1, Shou-Qi Yuan(袁寿其)2   

  1. 1. Laboratory of Modern Acoustics, Institute of Acoustics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China;
    2. Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang 212013, China;
    3. State Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China
  • Received:2015-11-13 Revised:2016-03-20 Online:2016-12-05 Published:2016-12-05
  • Contact: Hong-Xiang Sun, Shu-Yi Zhang E-mail:jsdxshx@ujs.edu.cn;zhangsy@nju.edu.cn
  • Supported by:

    Project supported by the National Basic Research Program of China (Grant No. 2012CB921504), the Major Program of the National Natural Science Foundation of China (Grant No. 51239005), the National Natural Science Foundation of China (Grant Nos. 11174142 and 11404147), the Natural Science Foundation of Jiangsu Province, China (Grant No. BK20140519), the China Postdoctoral Science Foundation (Grant No. 2015M571672), the Training Project of Young Backbone Teachers of Jiangsu University, China, and the Research Fund for Advanced Talents of Jiangsu University, China (Grant No. 13JDG106).

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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.

关键词: asymmetric acoustic transmission, pass-band control, grating diffraction, Lamb mode

Abstract:

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.

Key words: asymmetric acoustic transmission, pass-band control, grating diffraction, Lamb mode

中图分类号:  (Ultrasonics, quantum acoustics, and physical effects of sound)

  • 43.35.+d
43.20.+g (General linear acoustics)