学会発表

機械創成
教授 古谷克司

掲載年度 2011
種類 国外
学会名 14th European Conference on Power Electronics and Applications
発表題目 Fundamental experiments of transfer device using ultrasonic levitation
発表者 Katsushi Furutani
Masataka Ono(2009年度修士修了,現,日清紡)
主催団体 EPE Association
発表場所 The Inernational Convention Centre, Birmingham, UK
発表日 2011/09/01
講演内容 A noncontact transfer device using a combination of ultrasonic levitation with flexure traveling wave has some advantage in clean environment and simple device configuration. This paper deals with the concept of a two-dimensional transfer device using ultrasonic levitation, and fundamental experiments. A prototype of a one-dimensional transfer device was built and examined to assess design criteria of a two-dimensional transfer device. A prototype of the two-dimensional transfer device with four bolted Langevin transducers (BLTs) was constructed based on the results of the preliminary experiments. Thrust by the flexure traveling wave was observed. Some characteristics were measured under various frequency, phase difference and applied voltage. The velocity and levitation height were increased with an increase of the applied voltage to the BLTs. A carried plate was moved at 55 mm/s under the conditions of 1300 Vp-p as the applied voltage, 19900 Hz as the driving frequency and 90 degrees as the phase difference. In this case, the levitation height was 140 um.