Abstract
An ultrasonic device for micro-patterning and precision manipulation of micrometre-scale particles is demonstrated. The device is formed using eight piezoelectric transducers shaped into an octagonal cavity. By exciting combinations of transducers simultaneously, with a controlled phase delay between them, different acoustic landscapes can be created, patterning micro-particles into lines, squares, and more complex shapes. When operated with all eight transducers the device can, with appropriate phase control, manipulate the two dimensional acoustic pressure gradient; it thus has the ability to position and translate a single tweezing zone to different locations on a surface in a precise and programmable manner.
Original language | English |
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Title of host publication | IEEE International Ultrasonics Symposium, IUS |
Pages | 1903-1906 |
Number of pages | 4 |
DOIs | |
Publication status | Published - 1 Dec 2013 |
Event | 2013 IEEE International Ultrasonics Symposium, IUS 2013 - Prague, United Kingdom Duration: 21 Jul 2013 → 25 Jul 2013 |
Conference
Conference | 2013 IEEE International Ultrasonics Symposium, IUS 2013 |
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Country | United Kingdom |
City | Prague |
Period | 21/07/13 → 25/07/13 |
Keywords
- 2D particle manipulation component
- Acoustic radiation pressure
- Particle patterning