Method and device for measuring the surface tension of a liquid

Details Method and device for measuring the surface tension of a liquid Method and device for measuring the surface tension of a liquid

1996-10-21

1998-10-20

Williams, Hezron E.

Measuring and testing

Liquid analysis or analysis of the suspension of solids in a...

Surface tension

G01N 1302

Patent

active

058248870

ABSTRACT:
The invention relates to the measurement of the dynamic surface tension of a liquid, particularly a liquid forming a curtain. The measuring device includes introducing, into the curtain, an obstacle adapted to create a standing wave defining two inverted Vs. A light source illuminates the standing wave and a camera forms an image of at least part of the standing wave. The light source or obstacle is adjusted such that the two inverted Vs are substantially identical, and the surface tension is determined.

REFERENCES:
"Waves in a viscous liquid curtain" by S.P. Lin and G. Roberts, Mar. 17, 1981, pp. 443-458, Journal of Fluid Mechanics (1981 vol. 112).

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