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Erschienen in:

2018 | OriginalPaper | Buchkapitel

9. Application of Acoustic Metamaterial to Time-Reversal Acoustics

verfasst von : Woon Siong Gan

Erschienen in: New Acoustics Based on Metamaterials

Verlag: Springer Singapore

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Abstract

Time reversal acoustics is based on the time reversal symmetry of the acoustic fields. A detailed description of the acoustic field equation showing the time reversal symmetry property of S the solution is given. A geometric structure of a metamaterial for both an electromagnetic wave and acoustic wave is given. Then, the geometric structure of the metamaterial to implement time reversal acoustics is given. Time reversal acoustics has been successfully applied to non-destructive testing, medical ultrasound imaging, and underwater acoustics. The advantage of using metamaterial in time reversal acoustics is that it supports modes which radiate spatial information of the near field of a source efficiently in the far field.

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Vorheriges Kapitel Local Resonant Structures

Nächstes Kapitel Underwater Acoustical Cloaking

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Titel: Application of Acoustic Metamaterial to Time-Reversal Acoustics
verfasst von: Woon Siong Gan
Verlag: Springer Singapore
Buch: New Acoustics Based on Metamaterials
Print ISBN: 978-981-10-6375-6

Electronic ISBN: 978-981-10-6376-3

Copyright-Jahr: 2018
DOI: https://doi.org/10.1007/978-981-10-6376-3_9

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