Measurement of coatings on metal
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United States of America Patent
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N/A
Issued Date -
Dec 2, 2004
app pub date -
May 1, 2002
filing date -
May 1, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Oscillating magnetic flux energy is coupled with coated material. The oscillating magnetic energy is used to measure the electrical impedance and magnetic permeability of the material. Using known values of conductivity and permeability, is this possible to measure the extent of diffusion, including concentration, of the coating into the substrate. The method of this invention does not require destructive testing of the target material.
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