Method and apparatus for measuring and/or monitoring the surface

Details Method and apparatus for measuring and/or monitoring the surface Method and apparatus for measuring and/or monitoring the surface

1985-03-04

1986-09-16

Levy, Stewart J.

Measuring and testing

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

Vapor pressure

G01N 1302

Patent

active

046114866

ABSTRACT:
A method and apparatus for measuring the surface tension of a fluid wherein standing circular capillary waves are produced by spectral excitation of the fluid and the spectral function is determined from the measurement signal corresponding to the intensity of reflected light within a selected frequency range. Such a method is distinguished by its independence of external disruptive influences and its simplicity of being automated.

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