The Feasibility and Design of Multifrequency Acoustic Traps

Research output: Chapter or section in a book/report/conference proceedingChapter in a published conference proceeding

Abstract

Single frequency acoustic traps are widely applied to microparticle trapping, filtering, sorting and manipulation. This work considers how additional frequencies can be used to achieve better trapping. The acoustic radiation force on a small (sub-wavelength) particle in a rigid walled cavity vibrating at multiple harmonic frequencies is calculated analytically and applied to developing a trap with large regions of near constant force and a stiff local trap at the cavity center. A 1D transmission line model is used to demonstrate that these multi-frequency traps should be realizable in a straight forward acoustic system and that the trap stiffness can be increased more than 2.5 ×compared to a single frequency trap without increasing power requirements or the acoustic intensity in the chamber.

Original languageEnglish
Title of host publication2021 IEEE International Ultrasonics Symposium (IUS)
PublisherIEEE
ISBN (Electronic)978-1-6654-0355-9
ISBN (Print)978-1-6654-4777-5
DOIs
Publication statusE-pub ahead of print - 13 Nov 2021
Event2021 IEEE International Ultrasonics Symposium, IUS 2021 - Virtual, Online, China
Duration: 11 Sep 201116 Sep 2011

Publication series

NameIEEE International Ultrasonics Symposium, IUS
PublisherIEEE
ISSN (Print)1948-5719

Conference

Conference2021 IEEE International Ultrasonics Symposium, IUS 2021
Country/TerritoryChina
CityVirtual, Online
Period11/09/1116/09/11

Keywords

  • Acoustic Radiation Force
  • Acoustic Tweezers
  • Ultrasonics

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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