Efficient counter-propagating wave acoustic micro-particle manipulation

A. Grinenko, C.K. Ong, C.R.P. Courtney, P.D. Wilcox, B.W. Drinkwater

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

A simple acoustic system consisting of a pair of parallel singe layered piezoelectric transducers submerged in a fluid used to form standing waves by a superposition of two counter-propagating waves is reported. The nodal positions of the standing wave are controlled by applying a variable phase difference to the transducers. This system was used to manipulate polystyrene micro-beads trapped at the nodal positions of the standing wave. The demonstrated good manipulation capability of the system is based on a lowering of the reflection coefficient in a narrow frequency band near the through-thickness resonance of the transducer plates.
Original languageEnglish
Article number233501
JournalApplied Physics Letters
Volume101
Issue number23
DOIs
Publication statusPublished - 3 Dec 2012

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standing waves
manipulators
counters
acoustics
transducers
piezoelectric transducers
beads
polystyrene
reflectance
fluids

Cite this

Efficient counter-propagating wave acoustic micro-particle manipulation. / Grinenko, A.; Ong, C.K.; Courtney, C.R.P.; Wilcox, P.D.; Drinkwater, B.W.

In: Applied Physics Letters, Vol. 101, No. 23, 233501, 03.12.2012.

Research output: Contribution to journalArticle

Grinenko, A. ; Ong, C.K. ; Courtney, C.R.P. ; Wilcox, P.D. ; Drinkwater, B.W. / Efficient counter-propagating wave acoustic micro-particle manipulation. In: Applied Physics Letters. 2012 ; Vol. 101, No. 23.
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