Method and apparatus for the measurement of surface tension

Details Method and apparatus for the measurement of surface tension Method and apparatus for the measurement of surface tension

1975-12-12

1976-11-09

Watkins, Donald E.

Measuring and testing

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

Vapor pressure

73 611R, 73552, G01N 1302

Patent

active

039902935

ABSTRACT:
The invention relates to methods and apparatus for the detection of changes in surface tension of a liquid by introducing an inert gas under pressure into the liquid to form an inert gas-liquid mixture, decompressing the mixture to provide bubbles which increase in size and generate sounds and measuring the sound intensity of the sound generated by the decompression of the gas-liquid mixture. Inasmuch as the addition of pollutants to water changes the surface tension characteristics of the water, the present invention is applicable to the monitoring of water for the detection of pollutants.

REFERENCES:
patent: 2766838 (1956-10-01), Shanley
patent: 3381525 (1968-05-01), Kartluke et al.
patent: 3538747 (1970-11-01), Munch

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