High-Accuracy Conductivity Measurements in Nonferrous Metals

G Free

doi:10.1520/STP27582S

SYMPOSIA PAPER Published: 01 January 1981

STP27582S

High-Accuracy Conductivity Measurements in Nonferrous Metals

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An eddy-current instrument has been built that measures electrical conductivity with a high degree of accuracy and precision. The instrument measures the electrical conductivity of nonferrous metals at a constant skin depth. By keeping the product ωσ constant in all measurements, a linear relationship between conductivity and frequency can be established. Due to this linear relationship, only one conductivity standard is necessary to calibrate the instrument over the full range of 1 to 100 percent international annealed copper standard (IACS).

Author Information

Free, G

National Bureau of Standards, Department of Commerce, Washington, D.C.

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Details

Developed by Committee: E07

Pages: 121–128

DOI: 10.1520/STP27582S

ISBN-EB: 978-0-8031-4792-8

ISBN-13: 978-0-8031-0752-6

High-Accuracy Conductivity Measurements in Nonferrous Metals

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