Eddy-Current-Induced Magnetic Alignment of Electroconductive Particles under Rotating Magnetic Field

概要

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The magnetic alignment of electroconductive particles with shape anisotropy under a rotating magnetic field is reported. It is theoretically demonstrated that a coil aligns parallel to the plane of the rotating magnetic field. The phase delay of a resistor–inductor (RL) circuit represented by a coil placed under an oscillating magnetic field is responsible for the alignment. Experiments performed on an aluminum disk with a size of millimeter order (theoretically, much smaller sizes are possible) suspended in a liquid medium show good agreement with the theory.
Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
2008-06-25