Ueha S, Hashimoto Y, Koike Y
Precision and Intelligence Laboratory, Tokyo Institute of Technology, Yokohama, Japan.
Ultrasonics. 2000 Mar;38(1-8):26-32. doi: 10.1016/s0041-624x(99)00052-9.
Near-field acoustic levitation, where planar objects 10 kg in weight can levitate stably near the vibrating plate, is successfully applied both to non-contact transportation of objects and to a non-contact ultrasonic motor. Transporting apparatuses and an ultrasonic motor have been fabricated and their characteristics measured. The theory of near-field acoustic levitation both for a piston-like sound source and a flexural vibration source is also briefly described.
近场声悬浮技术能够使重达10千克的平面物体在振动板附近稳定悬浮，该技术已成功应用于物体的非接触运输及非接触超声波电机。现已制造出运输设备和超声波电机，并对其特性进行了测量。本文还简要介绍了针对活塞式声源和弯曲振动源的近场声悬浮理论。
