Vibration Characteristics of Magnetic Fluid Droplet Adsorbed to Magnetized Needlepoint in Alternating Magnetic Field

Abstract:

The dynamic behavior of a magnetic fluid droplet adsorbed to magnetized needlepoint in alternating magnetic field was studied with a high speed video camera system. The directions of alternating magnetic field were parallel and opposite to static magnetic field of magnetized needlepoint. It was found that the surface of magnetic fluid droplet responds to the external magnetic field in elongation and contraction. The frequency of magnetic fluid droplet oscillation was exactly same of the external magnetic field. The shape and instability oscillations of the magnetic fluid droplet were revealed experimentally.

• Periodical: Materials Science Forum (Volume 721)
• Pages: 108-113
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.721.108
• Online since: June 2012
• Authors: Sota Inomata, Seiichi Sudo, Hidemasa Takana, Hideya Nishiyama
• Keywords: Alternating Magnetic Field, Ferrohydrodynamics, Frequency Response, Magnetic Fluid, Micro Fluid Driving System, Permanent Magnet

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