Title :
Using the skin effect to estimate cracks depths in mettalic structures
Author :
Ramos, Higinio ; Postolache, Octavian ; Alegria, F Correa ; Lopes Ribeiro, A.
Author_Institution :
Inst. Telecomun., Inst. Super. Tecnico, Lisbon, Portugal
Abstract :
This paper is concerned with the characterization of depth profiles defects in metallic structures. Experimental work using giant magnetoresistors (GMR) scanning automatically a metallic plate with eddy currents induced by an excitation coil has been carried out and is described. The results are analyzed in comparison with the simulation results obtained with a commercial finite element model for some test cases.
Keywords :
aerospace components; crack detection; eddy current testing; finite element analysis; magnetoresistive devices; skin effect; structural engineering; GMR scanning; aircraft metallic structures; cracks depth estimation; depth profiles defects; eddy current test; excitation coil; finite element model; giant magnetoresistors; nondestructive testing; skin effect; Coils; Eddy currents; Frequency; Giant magnetoresistance; Magnetic field measurement; Magnetic sensors; Magnetoresistive devices; Skin effect; Telecommunications; Testing; Electromagnetic non-destructive evaluation; eddy currents; giant magnetoresistor (GMR);
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2009. I2MTC '09. IEEE
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-3352-0
DOI :
10.1109/IMTC.2009.5168668
