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IEEE transactions on ultrasonics, ferroelectrics, and frequency control, 2015-12, Vol.62 (12), p.2161-2168
2015

Details

Autor(en) / Beteiligte
Titel
Two-dimensional noncontact transportation of small objects in air using flexural vibration of a plate
Ist Teil von
  • IEEE transactions on ultrasonics, ferroelectrics, and frequency control, 2015-12, Vol.62 (12), p.2161-2168
Ort / Verlag
United States: IEEE
Erscheinungsjahr
2015
Link zum Volltext
Quelle
IEEE Xplore Digital Library
Beschreibungen/Notizen
  • This paper investigates a two-dimensional ultrasonic manipulation technique for small objects in air. The ultrasonic levitation system consists of a rectangular vibrating plate with four ultrasonic transducers and a reflector. The configuration of the vibrator, the resonant frequency, and the positions of the four transducers with step horns were determined from finite element analysis such that an intense acoustic standing-wave field could be generated between the plates. A lattice flexural vibration mode with a wavelength of 28.3 mm was excited on the prototype plate at 24.6 kHz. Small objects could get trapped in air along the horizontal nodal plane of the standing wave. By controlling the driving phase difference between the transducers, trapped objects could be transported without contact in a two-dimensional plane. When the phase difference was changed from 0° to 720°, the distance moved by a small particle in the orthogonal direction was approximately 29 mm, which corresponds with the wavelength of the flexural vibration on the vibrating plate.
Sprache
Englisch
Identifikatoren
ISSN: 0885-3010
eISSN: 1525-8955
DOI: 10.1109/TUFFC.2015.006998
Titel-ID: cdi_ieee_primary_7348989

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