The influence of temporal phase difference of m=±2 oscillations on surface frequency analysis for levitated droplets

S. Ozawa, T. Koda, M. Adachi, K. Morohoshi, M. Watanabe, T. Hibiya

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

The oscillations of an electromagnetically levitated molten silicon droplet were analyzed. Analysis was carried out under a superimposed static magnetic field, where the m=±2 oscillation is dominant and the droplet rotates. A phase unwrapping method was used to reveal sample rotation. The oscillation frequency of the longest diameter Dmax and difference of radii along the X and Y axes, R-, were analyzed using an image of the droplet as seen from the top of the sample. The m=+2 and m=-2 oscillations were analyzed theoretically using spherical harmonics, and it was found that a temporal phase difference between m=+2 and -2 oscillations causes apparent rotation of the samples, which causes unequal intensities of the m=±2 peaks which are split by the droplet rotation.

Original languageEnglish
Article number034907
JournalJournal of Applied Physics
Volume106
Issue number3
DOIs
Publication statusPublished - 2009 Aug 28
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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