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Improved ultrasonic micro array separation using far field ultrasonic excitation

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Author

Editor

  • Jean-Louis Viovy
  • Patrick Tabeling
  • Stephanie Descroix
  • Laurent Malaquin

Summary, in English

This paper reports improved separation efficiency of an ultrasonic standing wave separator microchannel array by means of ultrasonic far field excitation. By putting an aluminium spacer between the transducer and the channel array, the acoustic power transmission region is moved into the ultrasonic far field decreasing the local intensity variations which is induced in close vicinity to the transducer. This generates a more stable acoustic separation, which enables better separation performance and higher separation efficiency.

Publishing year

2007

Language

English

Pages

1417-1419

Publication/Series

[Host publication title missing]

Volume

2

Document type

Conference paper

Topic

  • Medical Engineering

Keywords

  • microfluidics
  • ultrasound
  • separation
  • far field

Conference name

Micro Total Analysis Systems 2007

Conference date

2007-10-07 - 2007-10-11

Status

Published

ISBN/ISSN/Other

  • ISBN: 978-0-9798064-0-7