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A New Method for the Characterization of Electrically Conducting Liquid Bridges

Authors
Journal
Journal of Colloid and Interface Science
0021-9797
Publisher
Elsevier
Publication Date
Volume
227
Issue
2
Identifiers
DOI: 10.1006/jcis.2000.6833
Keywords
  • Liquid Bridge
  • Electrical Conductivity
  • Surface Tension
  • Contact Angle
Disciplines
  • Mathematics

Abstract

Abstract An electrical conductance technique is employed in investigating the behavior of constant volume liquid bridges when their length is altered. The liquid bridges are edge-pinned between two vertical, identical rods with a variable separation distance. Rods of different radius, material, and edge geometry are examined as they play a role in the response of the system. It is shown that liquid bridge volume and rod radius are the parameters that mainly influence the conductance signal. A mathematical framework is developed for the identification of the geometrical characteristics of liquid bridges explicitly from conductance data. The role of gravity is discussed in both the experiments and the theoretical analysis. The theoretical predictions obtained show a close agreement with measurements.

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