Diamagnetic Levitation Thermometer

Research output: Contribution to journalLetterpeer-review

Abstract

This paper reports a diamagnetic levitation thermometer using a pyrolytic graphite (PG). The levitation height of diamagnetic materials depends on the temperature. The system is composed of a PG disc, permanent magnet for driving, non-contact laser displacement meter, and spot heater. We evaluated the height in air and vacuum changing the temperature of the PG disc, and the disc changes its height as to be −1.49 and 1.55 µm/°C in air and vacuum, respectively. Differential thermal analysis of polystyrene is demonstrated. The potential of the diamagnetic levitation as a new principle measuring temperature changes is indicated.

Original languageEnglish
Pages (from-to)773-774
Number of pages2
JournalIEEJ Transactions on Electrical and Electronic Engineering
Volume15
Issue number5
DOIs
Publication statusPublished - 2020 May 1

Keywords

  • magnetic levitation
  • pyrolytic graphite
  • thermometer

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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