SYMPOSIA PAPER Published: 01 January 1958

Nickel Thickness Gage


The thickness of a nickel film can be determined by measuring the force required to pull a small magnet free of the surface; however, inconsistent and unreliable results were obtained with this type of measurement when the film was extremely thin and the surface slightly rough. The magnetic properties of nickel suggested that a reluctance technique of measurement could be used to determine the thickness of the nickel.

Author Information

Cook, Louis, H.
Savannah River Laboratory, E. I. du Pont de Nemours & Co., Aiken, S. C.
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Developed by Committee: E07
Pages: 225–230
DOI: 10.1520/STP41996S
ISBN-EB: 978-0-8031-5948-8
ISBN-13: 978-0-8031-6102-3