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Improved ultrasonic micro array separation using far field ultrasonic excitation

  • Jean-Louis Viovy (Prof.)
  • Patrick Tabeling
  • Stephanie Descroix
  • Laurent Malaquin
Publiceringsår: 2007
Språk: Engelska
Sidor: 1417-1419
Volym: 2
Dokumenttyp: Konferensbidrag


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.



  • Medicine and Health Sciences
  • Technology and Engineering
  • microfluidics
  • ultrasound
  • separation
  • far field


Micro Total Analysis Systems 2007
Paris, France
  • ISBN: 978-0-9798064-0-7

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