变换声学对声源的平移错觉

Translational illusion of acoustic sources by transformation acoustics.

作者信息

Sun Fei, Li Shichao, He Sailing

机构信息

Centre for Optical and Electromagnetic Research, Zhejiang Provincial Key Laboratory for Sensing Technologies, Yuhangtang Road No. 388, Zijingang Campus East Building #5, Zhejiang University, Hangzhou 310058, People's Republic of China.

出版信息

J Acoust Soc Am. 2017 Sep;142(3):1213. doi: 10.1121/1.5000483.

DOI:10.1121/1.5000483

PMID:28964074

Abstract

An acoustic illusion of creating a translated acoustic source is designed by utilizing transformation acoustics. An acoustic source shifter (ASS) composed of layered acoustic metamaterials is designed to achieve such an illusion. A practical example where the ASS is made with naturally available materials is also given. Numerical simulations verify the performance of the proposed device. The designed ASS may have some applications in, e.g., anti-sonar detection.

摘要

利用变换声学设计了一种用于创建平移声源的声学错觉。设计了一种由分层声学超材料组成的声源移位器（ASS）来实现这种错觉。还给出了一个用天然可用材料制作ASS的实际例子。数值模拟验证了所提出装置的性能。所设计的ASS可能在例如反声纳探测等方面有一些应用。