4 October 2001 Walking machine driven by a light beam
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Proceedings Volume 4564, Optomechatronic Systems II; (2001); doi: 10.1117/12.444091
Event: Intelligent Systems and Advanced Manufacturing, 2001, Boston, MA, United States
Abstract
Optically driven small machines have such features as easily miniaturized in fabrication and as controlled by optical energy supplied in wireless. We report an optically controlled machine which moves like a catepillar on the basis of photo-thermal effect. This miniaturized machine fundamentally consists of two parts: a body made of shape memory alloys and springs and feet made of magnets and temperature-sensitive ferrites. Th effect can stick to the carbon steel floor due to magnetic force balance caused by projected beam, and the body repeats stretching and shrinking using deformation of shape memory alloys caused by switching on and off of projected beam. A prototype is fabricated in trial with a size of 35 mm by 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 on a horizontal floor and it could climb a slope as steep as 50 degree. To improve the ability of this prototype, we newly developed a smaller machine with the total length of 20 mm by 15 mm and the weight of 1.1 g. Because of lighter weight of this machine, it could climb any slope including a vertical wall.
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Toru Yoshizawa, Daisuke Hayashi, Masayuki Yamamoto, Yukitoshi Otani, "Walking machine driven by a light beam", Proc. SPIE 4564, Optomechatronic Systems II, (4 October 2001); doi: 10.1117/12.444091; https://doi.org/10.1117/12.444091
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KEYWORDS
Prototyping

Shape memory alloys

Beam shaping

Magnetism

Switching

Carbon

Halogens

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