A large ultrasonic bounded acoustic pulse transducer for acoustic transmission goniometry: Modeling and calibration

2006 ◽  
Vol 119 (1) ◽  
pp. 54-64 ◽  
Author(s):  
Youcef Bouzidi ◽  
Douglas R. Schmitt
Keyword(s):  
Acoustic Pulse ◽  
Acoustic Transmission ◽  
Pulse Transducer

Tunable asymmetric acoustic transmission via binary metasurface and zero-index metamaterials

2021 ◽  
Vol 118 (11) ◽  
pp. 113501
Author(s):  
Zhongming Gu ◽  
Xinsheng Fang ◽  
Tuo Liu ◽  
He Gao ◽  
Shanjun Liang ◽  
...  
Keyword(s):  
Acoustic Transmission ◽  
Zero Index

scholarly journals High-amplitude sound propagation in acoustic transmission-line metamaterial

2021 ◽  
Vol 118 (10) ◽  
pp. 104102
Author(s):  
Jiangyi Zhang ◽  
Vicente Romero-García ◽  
Georgios Theocharis ◽  
Olivier Richoux ◽  
Vassos Achilleos ◽  
...  
Keyword(s):  
Transmission Line ◽  
Sound Propagation ◽  
High Amplitude ◽  
Acoustic Transmission

scholarly journals Spatial Decomposition of a Broadband Pulse Caused by Strong Frequency Dispersion of Sound in Acoustic Metamaterial Superlattice

Materials ◽  
2020 ◽  
Vol 14 (1) ◽  
pp. 125
Author(s):  
Yuqi Jin ◽  
Yurii Zubov ◽  
Teng Yang ◽  
Tae-Youl Choi ◽  
Arkadii Krokhin ◽  
...  
Keyword(s):  
Acoustic Pulse ◽  
Frequency Dispersion ◽  
Transmission Band ◽  
Lateral Position ◽  
Operating Frequency ◽  
Frequency Range ◽  
Frequency Spectra ◽  
Acoustic Metamaterial ◽  
Superlattice Structure ◽  
Broadband Pulse

An acoustic metamaterial superlattice is used for the spatial and spectral deconvolution of a broadband acoustic pulse into narrowband signals with different central frequencies. The operating frequency range is located on the second transmission band of the superlattice. The decomposition of the broadband pulse was achieved by the frequency-dependent refraction angle in the superlattice. The refracted angle within the acoustic superlattice was larger at higher operating frequency and verified by numerical calculated and experimental mapped sound fields between the layers. The spatial dispersion and the spectral decomposition of a broadband pulse were studied using lateral position-dependent frequency spectra experimentally with and without the superlattice structure along the direction of the propagating acoustic wave. In the absence of the superlattice, the acoustic propagation was influenced by the usual divergence of the beam, and the frequency spectrum was unaffected. The decomposition of the broadband wave in the superlattice’s presence was measured by two-dimensional spatial mapping of the acoustic spectra along the superlattice’s in-plane direction to characterize the propagation of the beam through the crystal. About 80% of the frequency range of the second transmission band showed exceptional performance on decomposition.

Sign in / Sign up

Export Citation Format

Share Document