STP223: Nickel Thickness Gage

    Cook, Louis H.
    Savannah River Laboratory, E. I. du Pont de Nemours & Co., Aiken, S. C.

    Pages: 6    Published: Jan 1958


    Abstract

    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.


    Paper ID: STP41996S

    Committee/Subcommittee: E07.07

    DOI: 10.1520/STP41996S


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