Title :
Remote field eddy current inspection of metallic tubes using GMR sensors
Author :
Pasadas, D.J. ; Rocha, T.J. ; Ramos, Helena G. ; Lopes Ribeiro, A.
Author_Institution :
Inst. Super. Tecnico, UTL, Lisbon, Portugal
Abstract :
This article describes the inspection of metallic tubes using the remote field eddy current method. The excellent performance of giant magneto-resistance sensors in what concerns sensitivity, linearity, large bandwidth and direct assess to the magnetic field makes it a good choice for defect inspection in the applications where the measurement of low amplitude and low frequency magnetic fields is necessary. Experimental results with an artificial machined defect were included in the paper.
Keywords :
eddy currents; giant magnetoresistance; inspection; magnetic field measurement; magnetic sensors; GMR sensors; artificial machined defect; defect inspection; giant magneto-resistance sensors; low amplitude measurement; low frequency magnetic field measurement; magnetic field; metallic tubes; remote field eddy current inspection method; Coils; Eddy currents; Electron tubes; Inspection; Magnetic field measurement; Magnetic fields; Sensors; GMR; remote field eddy current; tube inspection;
Conference_Titel :
Instrumentation and Measurement Technology Conference (I2MTC), 2013 IEEE International
Conference_Location :
Minneapolis, MN
Print_ISBN :
978-1-4673-4621-4
DOI :
10.1109/I2MTC.2013.6555427
