Measuring and testing – Liquid analysis or analysis of the suspension of solids in a... – Vapor pressure
Patent
1981-03-05
1983-11-08
Kazenske, E. R.
Measuring and testing
Liquid analysis or analysis of the suspension of solids in a...
Vapor pressure
G01N 1302
Patent
active
044135068
ABSTRACT:
A thin-film, horizontal balance instrument is provided for measuring surface tension (surface energy) of thin films suspended on a liquid substrate. The balance includes a support bearing and an optical feedback arrangement for wide-range, high sensitivity measurements. The force on the instrument is balanced by an electromagnet, the current through the magnet providing a measure of the force applied to the instrument. A novel float construction is also disclosed.
REFERENCES:
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Harkins, W. D. et al., Contact Potentials and the Effects of Unimolecular Films on Surface Potentials, I. Films of Acids and Alcohols, Journ. of Chem. Phy., vol. I, (Dec. 1933), pp. 852-862.
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Abraham Bernard M.
Ketterson John B.
Miyano Kenjiro
Besha Richard G.
Gottlieb Paul A.
Kazenske E. R.
Mansfield Bruce R.
Roskos Joseph W.
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