Acoustic trapping with a high frequency linear phased array
Acoustic trapping with a high frequency linear phased array
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DOI：
10.1063/1.4766912
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发表时间：
2012-11-19
影响因子：
4
通讯作者：
Shung, K. Kirk
中科院分区：
文献类型：
--
作者：
Zheng, Fan;Li, Ying;Shung, K. Kirk
一个高频超声相控阵列被证明是能够捕获和平移微粒精确和有效地，成为可能，由于这样的事实，即由相控阵列产生的声束可以被聚焦和转向。通过相控阵列对微粒的声学操纵优于单个元件换能器，因为阵列不需要机械运动。实验结果表明，用64单元26 MHz相控阵天线可以方便、准确地捕获直径为45 μ m的聚苯乙烯微球，并将其移动到所需的位置。(C)2012年美国物理学会。[http：//dx.doi.org/10.1063/1.4766912]
A high frequency ultrasonic phased array is shown to be capable of trapping and translating microparticles precisely and efficiently, made possible due to the fact that the acoustic beam produced by a phased array can be both focused and steered. Acoustic manipulation of microparticles by a phased array is advantageous over a single element transducer since there is no mechanical movement required for the array. Experimental results show that 45 mu m diameter polystyrene microspheres can be easily and accurately trapped and moved to desired positions by a 64-element 26MHz phased array. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4766912]