The dynamic behaviour of a micro liquid bridge of magnetic fluid in static and alternating magnetic fields

Seiichi Sudo, Hiroki Takamatsu, Tetsuya Yano, Hidemasa Takana, Hideya Nishiyama

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Experimental study on the dynamic behaviour of magnetic fluid micro bridges under the effect of static and alternating magnetic fields was conducted using a high-speed video camera system. Two needle-shaped NdFeB permanent magnets were used to generate the static magnetic field, and Helmholtz coil was used to generate alternating field. Harmonic motion of magnetic fluid bridge was observed. It was found that the amplitude in the vibration of magnetic fluid bridge depends on the strength of alternating magnetic field at the constant frequency. Phenomena of filament thinning and breakup in a capillary bridge of magnetic fluid under the alternating magnetic fields were revealed.

Original languageEnglish
Pages (from-to)61-67
Number of pages7
JournalInternational Journal of Applied Electromagnetics and Mechanics
Volume45
Issue number1-4
DOIs
Publication statusPublished - 2014 Jan 1

Keywords

  • Magnetic fluids
  • alternating magnetic field
  • liquid bridge
  • permanent magnet

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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