Experimental Realization of Extraordinary Acoustic Transmission Using Helmholtz Resonators
Experimental Realization of Extraordinary Acoustic Transmission Using Helmholtz Resonators
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Date
2015-03-20
Authors
Crow, Brian
Cullen, Jordan
McKenzie, William
Koju, Vijay
Robertson, William
Journal Title
Journal ISSN
Volume Title
Publisher
Middle Tennessee State University
Abstract
The experimental demonstration of near-perfect sound transmission through a solid barrier was accomplished through the use of a hollow chamber with two-necks—a Helmholtz resonator—embedded in the barrier. An audio signal was transmitted through a waveguide containing the resonator to a microphone. This signal was compared to a reference taken in the empty waveguide. Near perfect – 97.5% –
Description
Keywords
Extraordinary Acoustic Transmission,
Helmholtz Resonator,
EAT,
Helmholtz,
Acoustics,
Acoustic Lens,
slow wave propagation