Acoustic Standing-Wave Field for Manipulation in Air
Acoustic Standing-Wave Field for Manipulation in Air
复制标题
DOI：
10.1143/jjap.47.4336
复制
发表时间：
2008-05-01
影响因子：
1.5
通讯作者：
Ilda, Yasuo
中科院分区：
文献类型：
--
作者：
Kozuka, Teruyuki;Yasui, Kyuichi;Ilda, Yasuo
在微机械技术中，非接触操作技术是必不可少的。利用在换能器和反射器之间产生的驻波场，可以在声压场的节点处捕获粒子。本文从实验测量和数值计算两方面对声场进行了研究。用小型传声器测量了驻波场的声压分布，并用瑞利公式进行了数值计算。虽然通常使用瑞利公式计算来自声源的直接声压，但已有研究表明，通过将多个反射波相加，可以用瑞利公式计算驻波场的声压。(DOI: 10.1143 / JJAP.47.4336)
A noncontact manipulation technique is necessary in micromachine technology. Using a standing-wave field generated between a transducer and a reflector, it is possible to trap particles at nodes of a sound pressure field. In the present paper, a sound filed has been studied by both experimental measurement and numerical caluclation. The sound pressure distribution of a standing-wave field was measured using a small microphone and calculated numerically using Rayleigh's formula. Although Rayleigh's formula is usually used to calculated direct sound pressure from a sound source, it has been shown that the sound pressure of the standing-wave field can be calculated by Rayleigh's formula by addding multiply reflected waves. [DOI: 10.1143/JJAP.47.4336]