Acoustic resonator optimisation for airborne particle manipulation

Citsabehsan Devendran, Duncan R. Billson, David A. Hutchins, Tuncay Alan, Adrian Neild

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Advances in micro-electromechanical systems (MEMS) technology and biomedical research necessitate micro-machined manipulators to capture, handle and position delicate micron-sized particles. To this end, a parallel plate acoustic resonator system has been investigated for the purposes of manipulation and entrapment of micron sized particles in air. Numerical and finite element modelling was performed to optimise the design of the layered acoustic resonator. To obtain an optimised resonator design, careful considerations of the effect of thickness and material properties are required. Furthermore, the effect of acoustic attenuation which is dependent on frequency is also considered within this study, leading to an optimum operational frequency range. Finally, experimental results demonstrated good particle levitation and capture of various particle properties and sizes ranging to as small as 14.8 μm.

Original languageEnglish
Title of host publicationPhysics Procedia
Subtitle of host publicationProceedings of the 2015 International Congress on Ultrasonics, 2015 ICU, Metz, France, May 10-14
EditorsNico Felicien Declercq de Patin
Place of PublicationAmsterdam, Netherlands
Number of pages4
Publication statusPublished - 2015
EventInternational Congress on Ultrasonics 2015 - Metz, France
Duration: 10 May 201514 May 2015


ConferenceInternational Congress on Ultrasonics 2015
Abbreviated titleICU 2015


  • Acoustic levitation
  • Acoustic resonator
  • Particle manipulation
  • Ultrasonic standing wave

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