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Proceedings Paper

Optical driving of a miniature machine composed of temperature-sensitive ferrite and shape memory alloy
Author(s): Toru Yoshizawa; Daisuke Hayashi; Yukitoshi Otani
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Paper Abstract

12 Optically driven small machines have such features as easily miniaturized in fabrication and as controlled by optical energy supplied remotely in wireless. We report on an optically controlled machine which moves like a caterpillar on the basis of optomechatronic principle. This miniaturized machine consists of two parts; a body made of shape memory alloys and springs and feet made of a magnet, a temperature- sensitive ferrite. The feet can hold the steel-made floor using magnetic force balance caused by projected beam, and the body repeats expansion and contraction using deformation of shape memory alloys caused by switching of projected beam. A prototype is fabricated in trial with a size of 35 mm X 12 mm. As an experimental result, it proved that they could move at the speed of 8.7 mm per cycle on a ceiling as well as a horizontal steel floor and it could ascend a slope as steep as 50 degree.

Paper Details

Date Published: 12 February 2001
PDF: 8 pages
Proc. SPIE 4190, Optomechatronic Systems, (12 February 2001); doi: 10.1117/12.417228
Show Author Affiliations
Toru Yoshizawa, Tokyo Univ. of Agriculture and Technology (Japan)
Daisuke Hayashi, Tokyo Univ. of Agriculture and Technology (Japan)
Yukitoshi Otani, Tokyo Univ. of Agriculture and Technology (Japan)

Published in SPIE Proceedings Vol. 4190:
Optomechatronic Systems
Hyungsuck Cho; George K. Knopf, Editor(s)

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