Title :
Nondestructive evaluation of hardness using AC permeability and impedance analysis
Author :
Kikuchi, Hiroaki ; Ito, Fumihiko ; Daimon, Shogo
Author_Institution :
Fac. of Eng., Iwate Univ., Morioka, Japan
Abstract :
The equivalent circuit for the relation between the impedance of the coil wound around the magnetic yoke and the permeability of the material was analyzed for a quantitative estimation of an initial permeability of materials from the impedance measurement of the magnetic yoke. The optimum design of the magnetic yoke for an impedance measurement is also considered. In addition, a potential of NDE for the hardness of deformed low carbon steel using the impedance measurement was confirmed experimentally.
Keywords :
carbon steel; coils; deformation; electric impedance measurement; equivalent circuits; hardness testing; nondestructive testing; permeability; AC impedance analysis; AC permeability analysis; NDE; carbon steel; coil wound; equivalent circuit; hardness deformation; impedance measurement; magnetic yoke; nondestructive hardness evaluation; quantitative estimation; Coils; Impedance; Impedance measurement; Inductance; Magnetic circuits; Permeability; Steel; AC permeability; equivalent circuit; impedance; nondestructive evaluation;
Conference_Titel :
Sensing Technology (ICST), 2013 Seventh International Conference on
Conference_Location :
Wellington
Print_ISBN :
978-1-4673-5220-8
DOI :
10.1109/ICSensT.2013.6727720
