Robust acoustic particle manipulation: A thin-reflector design for moving particles to a surface
Robust acoustic particle manipulation: A thin-reflector design for moving particles to a surface
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DOI：
10.1121/1.3186800
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发表时间：
2009-09-01
影响因子：
2.4
通讯作者：
Baclet, P.
中科院分区：
文献类型：
--
作者：
Glynne-Jones, P.;Boltryk, R. J.;Baclet, P.
现有的能够将颗粒推到表面的超声操纵装置（“四分之一波”装置）在传感器应用中具有显著的潜力。这里描述了用于实现这一点的配置，该配置使用具有薄反射器层和薄流体层的分层结构的第一厚度谐振。至关重要的是，这种模式对于诸如聚合物的有损耗反射器材料是有效的，在反射器处产生更均匀的声辐射力，并且对几何变化的敏感性低于先前描述的四分之一波长器件。因此，预期该设计适用于大规模生产的一次性器械。(C)2009年美国声学学会
Existing ultrasonic manipulation devices capable of pushing particles to a surface ("quarter-wave" devices) have significant potential in sensor applications. A configuration for achieving this that uses the first thickness resonance of a layered structure with both a thin reflector layer and thin-fluid layer is described here. Crucially, this mode is efficient with lossy reflector materials such as polymers, produces a more uniform acoustic radiation force at the reflector, and is less sensitive to geometric variations than previously described quarter-wave devices. This design is thus expected to be suitable for mass produced, disposable devices. (C) 2009 Acoustical Society of America