TY - GEN
T1 - Crack detection in steel using a GMR-based MFL probe with radial magnetization
AU - Aguila-Munoz, J.
AU - Espina-Hernandez, J. H.
AU - Perez-Benitez, J. A.
AU - Caleyo, F.
AU - Hallen, J. M.
PY - 2013
Y1 - 2013
N2 - This paper presents the development of a portable probe for detecting cracks in steel plates. The probe consists of a magnet and a giant magneto-resistance (GMR) sensor. The magnet provides a radial magnetization at the surface of the steel plate. The GMR sensor detects the tangential component of the magnetic flux leakage due to a crack in the steel plate. Two steel plates were inspected with six cracks of depths: 0.5, 1.0, 1.5, 2.0, 2.5, and 3.0 mm, and widths of 0.25 and 0.5 mm, respectively. The cracks were scanned with the GMR sensitivity axis at 90°, 80°, 70°, 60° and 50°. It is demonstrated that the output voltage of the GMR sensor is sensitive to the orientation of the crack.
AB - This paper presents the development of a portable probe for detecting cracks in steel plates. The probe consists of a magnet and a giant magneto-resistance (GMR) sensor. The magnet provides a radial magnetization at the surface of the steel plate. The GMR sensor detects the tangential component of the magnetic flux leakage due to a crack in the steel plate. Two steel plates were inspected with six cracks of depths: 0.5, 1.0, 1.5, 2.0, 2.5, and 3.0 mm, and widths of 0.25 and 0.5 mm, respectively. The cracks were scanned with the GMR sensitivity axis at 90°, 80°, 70°, 60° and 50°. It is demonstrated that the output voltage of the GMR sensor is sensitive to the orientation of the crack.
KW - GMR sensor
KW - Magnetic flux leakage
KW - crack detection
KW - nondestructive evaluation
KW - permanent magnet
UR - http://www.scopus.com/inward/record.url?scp=84881063959&partnerID=8YFLogxK
U2 - 10.1109/CONIELECOMP.2013.6525768
DO - 10.1109/CONIELECOMP.2013.6525768
M3 - Contribución a la conferencia
AN - SCOPUS:84881063959
SN - 9781467361545
T3 - 23rd International Conference on Electronics, Communications and Computing, CONIELECOMP 2013
SP - 104
EP - 108
BT - 23rd International Conference on Electronics, Communications and Computing, CONIELECOMP 2013
T2 - 23rd International Conference on Electronics, Communications and Computing, CONIELECOMP 2013
Y2 - 11 March 2013 through 13 March 2013
ER -