Novel technique for dynamic surface tension and viscosity measurements at liquid-gas interfaces

C. H. Sohl*, K. Miyano, J. B. Ketterson

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

96 Scopus citations

Abstract

A novel means of generating and detecting surface waves at liquid-gas interfaces has been successfully developed. Electrocapillarity is used to generate the waves which are detected via specular reflection of a laser beam from the fluid surface to a position sensitive photodiode. Such a scheme is compact, sensitive, and does not mechanically touch the fluid surface. A preliminary study of highly damped waves on the magnetically oriented liquid crystal MBBA is reported.

Original languageEnglish (US)
Pages (from-to)1464-1469
Number of pages6
JournalReview of Scientific Instruments
Volume49
Issue number10
DOIs
StatePublished - Dec 1 1978

ASJC Scopus subject areas

  • Instrumentation

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