Rapid yet accurate measurement of mass diffusion coefficients by phase shifting interferometer

Zhixiong Guo, Shigenao Maruyama, Atsuki Komiya

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)

Abstract

The technique of using a phase-shifting interferometer is applied to the study of diffusion in transparent liquid mixtures. A quick method is proposed for determining the diffusion coefficient from the measurements of the location of fringes on a grey level picture. The measurement time is very short (within 100 s) and a very small transient diffusion field can be observed and recorded accurately with a rate of 30 frames per second. The measurement can be completed using less than 0.12 cc of solutions. The influence of gravity on the measurement of the diffusion coefficient is eliminated in the present method. Results on NaCl-water diffusion systems are presented and compared with the reference data.

Original languageEnglish
Pages (from-to)995-999
Number of pages5
JournalJournal of Physics D: Applied Physics
Volume32
Issue number9
DOIs
Publication statusPublished - 1999 May 7

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Acoustics and Ultrasonics
  • Surfaces, Coatings and Films

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