Haptics and Directional Audio Using Acoustic Metasurfaces

Louis Jackowski-Ashley, Gianluca Memoli, Mihai Caleap, Nicolas Slack, Bruce Drinkwater, Sriram Subramanian

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

3 Citations (Scopus)
302 Downloads (Pure)

Abstract

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.
Original languageEnglish
Title of host publicationProceedings of the 2017 ACM International Conference on Interactive Surfaces and Spaces (ISS 17)
Place of PublicationNew York, NY, USA
PublisherAssociation for Computing Machinery (ACM)
Pages429-433
Number of pages5
ISBN (Print)9781450346917
DOIs
Publication statusPublished - 17 Oct 2017

Keywords

  • Metasurface
  • Acoustic
  • Haptic feedback

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