Characteristics in the Opening and Closing Operations of Micro Magnetic Fluid Diaphragm Mechanism by Alternating Magnetic Field

Seiichi Sudo; Masato Nakanishi; Michihiro Shinozaki; Hideya Nishiyama

doi:10.4028/www.scientific.net/MSF.856.26

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HomeMaterials Science ForumMaterials Science Forum Vol. 856Characteristics in the Opening and Closing...

Characteristics in the Opening and Closing Operations of Micro Magnetic Fluid Diaphragm Mechanism by Alternating Magnetic Field

Abstract:

Response characteristics in the opening and closing operations of the micro magnetic fluid diaphragm mechanism by the alternating magnetic field are described. The micro magnetic fluid diaphragm mechanism was composed of a ring shaped permanent magnet and kerosene-based magnetic fluid. The driving principle of micro magnetic fluid device was based on the surface phenomena of magnetic fluid adsorbed on a permanent magnet. The opening and shutting time of diaphragm mechanism in the alternating magnetic field was measured by high-speed video camera system. The details of magnetic fluid surface response in the opening and closing operations of magnetic fluid hole were revealed experimentally.

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Periodical:

Materials Science Forum (Volume 856)

Pages:

26-31

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.856.26

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Online since:

May 2016

Authors:

Seiichi Sudo*, Masato Nakanishi, Michihiro Shinozaki, Hideya Nishiyama

Keywords:

Alternating Magnetic Fields, Hydrodynamics, Interfacial Phenomena, Magnetic Fluids, Micro Devices, Permanent Magnet

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