Title :
Study of the new eddy current non-destructive testing sensor on ferromagnetic materials
Author :
Nath, S. ; Wincheski, B. ; Fulton, J.P. ; Namkung, M.
Author_Institution :
Anal. Services & Mater., NASA Langley Res. Center, Hampton, VA, USA
fDate :
11/1/1994 12:00:00 AM
Abstract :
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
Keywords :
eddy current testing; fatigue; fatigue cracks; ferromagnetic materials; finite element analysis; steel; thickness measurement; Al; characteristics; eddy current nondestructive testing sensor; fatigue cracks; ferromagnetic materials; finite element modeling; lift-off characteristics; material thickness; nonconducting coating thickness; steel; Coatings; Current measurement; Eddy current testing; Eddy currents; Fatigue; Materials testing; NASA; Nondestructive testing; Sensor phenomena and characterization; Thickness measurement;
Journal_Title :
Magnetics, IEEE Transactions on
