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Study of the new eddy current non-destructive testing sensor on ferromagnetic materials

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4 Author(s)
Nath, S. ; Anal. Services & Mater., NASA Langley Res. Center, Hampton, VA, USA ; Wincheski, B. ; Fulton, J.P. ; Namkung, M.

A new eddy current non-destructive testing (NDT) sensor developed at NASA Langley Research Center can accurately detect fatigue cracks and measure material and non-conducting coating thicknesses. This paper presents experimental and finite element modeling data on the characteristics of the sensor on ferromagnetic materials. Fatigue crack detection and lift-off characteristics in steel and aluminum are compared and discussed

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Magnetics, IEEE Transactions on  (Volume:30 ,  Issue: 6 )