Three-dimensional mid-air acoustic manipulation by ultrasonic phased arrays.
Three-dimensional mid-air acoustic manipulation by ultrasonic phased arrays.
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DOI：
10.1371/journal.pone.0097590
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发表时间：
2014
期刊：
影响因子：
3.7
通讯作者：
Rekimoto J
中科院分区：
文献类型：
--
作者：
Ochiai Y;Hoshi T;Rekimoto J
悬浮技术的本质是对重力的抵消。众所周知，超声波驻波能够在其声压节点处悬浮小颗粒。传统研究中超声波束的声轴与重力平行，通过控制螺栓式朗万型换能器的相位或频率，使悬浮物体沿固定轴（即一维）运动。在本研究中，我们考虑扩展声学操作，即毫米大小的颗粒悬浮和三维移动由超声相控阵产生的局部超声驻波。我们的操作系统有两个独特的特点。一个是超声波束的方向，这是任意的，因为作用于其中心的力也被利用。另一种是操作原理，即在任意位置产生局域驻波，并通过对置和超声相控阵进行三维移动。实验证实，我们的方法可以处理直径为0.6 mm、1mm和2mm的膨胀聚苯乙烯颗粒。
The essence of levitation technology is the countervailing of gravity. It is known that an ultrasound standing wave is capable of suspending small particles at its sound pressure nodes. The acoustic axis of the ultrasound beam in conventional studies was parallel to the gravitational force, and the levitated objects were manipulated along the fixed axis (i.e. one-dimensionally) by controlling the phases or frequencies of bolted Langevin-type transducers. In the present study, we considered extended acoustic manipulation whereby millimetre-sized particles were levitated and moved three-dimensionally by localised ultrasonic standing waves, which were generated by ultrasonic phased arrays. Our manipulation system has two original features. One is the direction of the ultrasound beam, which is arbitrary because the force acting toward its centre is also utilised. The other is the manipulation principle by which a localised standing wave is generated at an arbitrary position and moved three-dimensionally by opposed and ultrasonic phased arrays. We experimentally confirmed that expanded-polystyrene particles of 0.6 mm, 1 mm, and 2 mm in diameter could be manipulated by our proposed method.
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DOI：
10.1143/jjap.46.4948
发表时间：
2007-07-01
期刊：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS
影响因子：
--
作者：
Kozuka, Teruyuki;Yasui, Kyuichi;Iida, Yasuo
通讯作者：
Iida, Yasuo
影响因子：
2.9
作者：
Hoshi, Takayuki;Takahashi, Masafumi;Shinoda, Hiroyuki
通讯作者：
Shinoda, Hiroyuki
影响因子：
4
作者：
Xie, W. J.;Cao, C. D.;Wei, B.
通讯作者：
Wei, B.
DOI：
10.1007/s00249-011-0767-3
发表时间：
2012-04-01
影响因子：
2
作者：
Weber, Richard J. K.;Benmore, Chris J.;Byrn, Stephen R.
通讯作者：
Byrn, Stephen R.
影响因子：
4.2
作者：
WHYMARK, RR
通讯作者：
WHYMARK, RR