Magnetic Force Switches for Magnetic Fluid Micromixing

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概要

• 論文の詳細を見る

• A magnetic fluid micromixer with energy-saving magnetic force switches that can manipulate the magnetic fluid flow is proposed. The micromixer of high mixing efficiency uses single-domain micro magnets that have strong magnetic anisotropy to produce the magnetic force for the mixing. By altering the magnetization directions of the magnets that have different aspect ratios and coercivities, open and closed magnetic fluxes can be produced around each magnet cluster. For open magnetic flux, the mixing efficiency is numerically found to increase with the saturation magnetization of the magnets. On the contrary, the magnet clusters barely affects the mixing efficiency in the case of closed magnetic flux. Due to the different magnetic forces produced in open and closed magnetic fluxes, the magnetic fluid mixing can be switched on and off.

• Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
• 2010-01-25

著者

• Wei Zung-hang

  Department Of Physics National Taiwan University

• Lai Mei-Feng

  Institute of NanoEngineering and MicroSystems, National Tsing Hua University, Hsinchu 300, Taiwan

• Lee Chiun-Peng

  Institute of Nanoengineering and Microsystems, National Tsing Hua University, Hsinchu 300, Taiwan

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