Haptics and directional audio using acoustic metasurfaces

Jackowski-Ashley, Louis, Memoli, Gianluca, Caleap, Mihai, Slack, Nicolas, Drinkwater, Bruce W and Subramanian, Sriram (2017) Haptics and directional audio using acoustic metasurfaces. 2017 ACM International Conference on Interactive Surfaces and Spaces, Brighton, UK, 17-20 October 2017. Published in: Proceedings of the 2017 ACM International Conference on Interactive Surfaces and Spaces. 429-433. ACM, New York, NY, USA. ISBN 9781450346917

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The ability to control acoustic fields offers many possible applications in loudspeaker design, ultrasound imaging, medical therapy, and acoustic levitation. Sound waves are currently shaped using phased array systems, even though the complex electronics required are expensive and hinder widespread use. Here we show how to control, direct, and manipulate sound using 2-dimensional, planar, acoustic metasurfaces that require only one driving signal. This offers the advantages of ease of use and versatility over currently available phased arrays. We demonstrate the creation of a haptic sensation and steering of a beam produced by a parametric speaker. This simple, yet highly effective, method of creating single-beam manipulators could be introduced in medical or manufacturing applications.

Item Type: Conference Proceedings
Keywords: 3D Printing, Haptic, Metamaterials, Sound
Schools and Departments: School of Engineering and Informatics > Informatics
Depositing User: Sriram Subramanian
Date Deposited: 07 Nov 2017 10:38
Last Modified: 08 Nov 2017 09:25
URI: http://srodev.sussex.ac.uk/id/eprint/70979

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Project NameSussex Project NumberFunderFunder Ref
User Interaction with self-supporting free-form physical objectsG1747EPSRC-ENGINEERING & PHYSICAL SCIENCES RESEARCH COUNCILEP/N014197/1