Acoustic Cloaking Device Hides Objects from Sound Waves

Acoustic Cloaking Device Hides Objects from Sound Waves
Mar-12-14
Using some perforated sheets of plastic stacked in the shape of a pyramid, researchers have developed a device able to hide an object from sound waves.

The device, created by a team from Duke University, relies on the use of metamaterials—arranging natural materials in repeating patterns to create new and unique properties. According to Professor Steven Cummer, when the sound wave-cloaking pyramid is placed around an object, “the sound waves behave like there is nothing more than a flat surface in their path.”

Based on the successful demonstration of the device, Cummer believes the sound-cloaking technology could have commercial applications beyond sonar avoidance, including controlling the acoustics in concert halls or auditoriums.



More Info about this Invention:

[DVICE.COM]
[DUKE UNIVERSITY]
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