超声悬浮传输及驻波-行波混合驱动

 超声悬浮传输广泛应用于材料制备、生化分析和先进电子制造等领域,声悬浮传输装置具有结构简单、传输形式灵活、传输速度快、传输距离远、应用范围广等优点。概括了声悬浮传输的理论基础,即声辐射力的计算方法;结合国内外研究,总结了不同传输方式对被传输物体的体积、传输的范围及速度的限制;分析了驻波-行波混合驱动进行超声悬浮传输可能存在的问题,展望了声悬浮传输的应用前景。

Application of standing wave-traveling wave hybrid drive in acoustic levitation and transportation

The acoustic levitation and transportation is widely used in the fields of the material preparation, the biochemical analysis and the advanced electronic manufacturing. The devices for that purposes often have a simple structure, can make flexible transportations, with a fast speed and a long distance, and enjoy a wide application range. The calculation methods of the acoustic radiation force, as the theoretical basis of the acoustic levitation and transportation, are reviewed; as well as the limitations of different methods with respect to the size of the object, the distance and the speed of the transportation; finally, some potential problems of the standing wave-traveling wave hybrid drive method in the acoustic levitation and transportation are analyzed and the potential applications of the acoustic levitation and transportation are prospected.