Three-Dimensional Gradient Metamaterial Devices Coupled with Phononic Crystals for Acoustic Enhancement Sensing

Conventional acoustic systems exhibit a difficulty in sensing weak acoustic fault signals in complex mechanical vibration environments. Therefore, it is necessary to develop an acoustic sensing mode and a corresponding functional device with pressure amplification. This paper proposes a three-dimens...

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Bibliographic Details
Main Authors: Xinsa Zhao, Guodong Hao, Yu Shang, Jianning Han
Format: Article
Language:English
Published: MDPI AG 2023-07-01
Series:Crystals
Subjects:
Online Access:https://www.mdpi.com/2073-4352/13/8/1191