Acoustic pressure patterning for through-wall energy transfer using holographic lenses

Vamsi Chandra Meesala; Brian Robert; Muhammad Hajj; Shima Shahab

doi:10.1117/12.2582992

22 March 2021 Acoustic pressure patterning for through-wall energy transfer using holographic lenses

Vamsi Chandra Meesala, Brian Robert, Muhammad Hajj, Shima Shahab

Proceedings Volume 11588, Active and Passive Smart Structures and Integrated Systems XV; 1158806 (2021) https://doi.org/10.1117/12.2582992
Event: SPIE Smart Structures + Nondestructive Evaluation, 2021, Online Only

Abstract

Through-wall acoustic energy transfer (TWAET) using piezoelectric devices is a technology proposed for wirelessly charging sensors in enclosed shells or vessels typically found in automobiles, space stations, and nuclear reactors. This mode of energy transfer has received significant attention in recent years as they outperform the traditional electromagnetic based through-wall wireless power transfer techniques which suffer due to Faraday shielding. Although useful, the existing framework is not suited to charge an enclosed sensor network. To address this shortcoming, we present, for the first time, acoustic holograms for selective TWAET and the details of the design, experiments, and potential applications.

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Vamsi Chandra Meesala, Brian Robert, Muhammad Hajj, and Shima Shahab "Acoustic pressure patterning for through-wall energy transfer using holographic lenses", Proc. SPIE 11588, Active and Passive Smart Structures and Integrated Systems XV, 1158806 (22 March 2021); https://doi.org/10.1117/12.2582992

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KEYWORDS

Acoustics

Energy transfer

Holography

Lenses

Optical lithography

Holograms

Optical design

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