Ultrasonic Micromanipulator Using Visual Feedback
- 1 May 1996
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 35 (5S)
- https://doi.org/10.1143/jjap.35.3244
Abstract
We have proposed ultrasonic micromanipulation (UMM) techniques for micron-sized particles in liquid based on the radiation forces of very-high-frequency (VHF) ultrasound. In this paper, we report new UMM techniques using visual feedback techniques. To generate VHF ultrasound, a beam-width-compression leaky wave transducer with a frequency of 50 MHz is used. The 50-µm-diameter SiO2 glass sphere and the polystyrene sphere are used as test particles. As an example of two-dimensional manipulation, the transportation of particles along circle and character patterns are demonstrated. The selective trapping of a glass sphere is also shown.Keywords
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