Far-field acoustic imaging enhancement using compact graded refractive index metamaterials

Z Li, J Ma, J Li, X Huang - IEEE Transactions on Computational …, 2023 - ieeexplore.ieee.org
Acoustic metamaterials (AMMs) are promising in high-performance acoustic detection and
imaging; however, few can be combined with sensors to form a practical detector, and most …

[PDF][PDF] Prospects on application of elastic metamaterials in acoustic emission sensing

Z Klimek, P Paćko - 2023 - ndt.net
This paper discusses challenges, limitations and problems arising in currently employed
acoustic emission testing systems, sensors and signal processing algorithms. Main factors …