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Zeitschrift für Physikalische Chemie

International journal of research in physical chemistry and chemical physics

Ed. by Rademann, Klaus

12 Issues per year

IMPACT FACTOR 2016: 1.012

CiteScore 2016: 0.99

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Volume 225, Issue 4 (Apr 2011)


Oscillations of a Hanging Liquid Drop, Driven by Interfacial Dielectric Force

Nikolay Tankovsky / Nikolay Zografov
  • 1 University of Sofia, Faculty of Physics, Sofia-1164, Bulgarien
Published Online: 2011-02-25 | DOI: https://doi.org/10.1524/zpch.2011.0074


Experimental technique is proposed to excite oscillations of a hanging liquid droplet by applying interfacial dielectric force directly upon the droplet surface. The force proved to be applicable for all kinds of liquids and solutions including non-conductive, isolating liquids. The oscillations are detected optically, with the help of a laser beam. The measured resonant frequency modes and resonance half-widths may be used to retrieve information about the surface properties of the droplet (surface tension and surface charge, in particular). The method is applicable to a wide variety of liquids and interfaces. Possible applications are analyzed and discussed.

Keywords: Liquid-Air Interface; Oscillating Droplet; Interfacial Force; Suface Tension; Surface Charge

About the article

* Correspondence address: University of Sofia, Faculty of Physics, 5 James Bourchier Blvd., Sofia-1164, Bulgarien,

Published Online: 2011-02-25

Published in Print: 2011-04-01

Citation Information: Zeitschrift für Physikalische Chemie, ISSN (Online) 2196-7156, ISSN (Print) 0942-9352, DOI: https://doi.org/10.1524/zpch.2011.0074. Export Citation

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