Optically Three-Dimensional Control of Magnetic Levitation Using Temperature-Sensitive Ferrite

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概要

• 論文の詳細を見る

• Optically driven actuators have a feature of a noncontact for applying moving energy remotely. In this paper, we propose a new method for optically driving a magnetic levitation system, which consists of a neodymium magnet as a movement object, a ferrite magnet, two blocks of graphite and a temperature-sensitive ferrite. The neodymium magnet is levitated by the diamagnetism of the graphite and the magnetic force between the neodymium and the ferrite. When a laser beam is irradiated on one of the temperature-sensitive ferrites, its magnetic susceptibility easily decreases owing to the photothermal effect. A levitated condition is derived from a numerical approach. As a result, the movement is successfully controlled in a three-dimensional area.

• Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
• 2008-05-25

著者

• Umeda Norihiro

  Tokyo Univ. Agriculture And Technol. Tokyo Jpn

• Otani Yukitoshi

  Tokyo Univ. Agriculture And Technol. Tokyo Jpn

• EBISAWA Mizue

  Tokyo University of Agriculture and Technology

• MIZUTANI Yasuhiro

  Tokyo University of Agriculture and Technology

• Otani Yukitoshi

  Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan

• Umeda Norihiro

  Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan

• Mizutani Yasuhiro

  Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan

• Ebisawa Mizue

  Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan

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