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Elasticity of an Air Cavity in a Magnetic Fluid on an Annular Magnet Segment with Changing Magnetic Field Sign

The paper discusses the results of experimental research on air cavity capture by magnetic fluid and elasticity of the produced oscillatory system on an annular magnet segment with changing magnetic field sign. This research relied on analysis of magnetic and acoustic oscillograms. It was shown that using the magnetic field segment of an annular magnet with this distinctive feature expands the possibilities of managing the magnetic fluid when producing an isolated gas cavity with a reduced value of elasticity parameter.

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Correspondence to V. M. Polunin.

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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 7, pp. 147–157, July, 2018.

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Polunin, V.M., Ryapolov, P.A., Ryabtsev, K.S. et al. Elasticity of an Air Cavity in a Magnetic Fluid on an Annular Magnet Segment with Changing Magnetic Field Sign. Russ Phys J 61, 1347–1357 (2018). https://doi.org/10.1007/s11182-018-1540-1

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Keywords

  • magnetic fluid
  • air cavity
  • oscillation frequency
  • annular magnet
  • magnetic and acoustic oscillograms
  • elasticity coefficient