Research Article
Jan 1961
Capacitance Method of Measuring Water Film Thickness
Author: R. H. BlackAuthor Affiliations
Publication: Transactions of the American Society of Civil Engineers
Volume 126, Issue 1
Abstract
A water film thickne ss gage was developed for making rapid measurements of the depth of a water sheet flowing on a plane surface. The gauge uses the electrical capacitance between a fixed metal plate and the water surface to sense the air gap and, by use of differences, measure the water depth.Rapid readings of the depth of a disturbed water sheet flowing down a plane were made. The dynamic range of the instrument was 0.130 in. with an accuracy of ±0.003 in. Transverse roller waves 3 in. long were resolved with this instrument; through the use of a special “probe,” waves 1/2 in. long were resolved.
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Published In
Transactions of the American Society of Civil Engineers
Volume 126 • Issue 1 • January 1961
Pages: 88 - 94
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© 1961 American Society of Civil Engineers.
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Published in print: Jan 1961
Published online: Feb 10, 2021
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R. H. Black
Chem. Engr., Aerojet-General Nucl eonics San Ramon, Calif. F ormerly with the U.S. Radiological Defense Lab., San F rancisco, California.
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