DocumentCode
2051575
Title
A magnetic imaging system for evaluation of material conditions using magnetoresistive devices
Author
Lo, C.C.H. ; Paulsen, J.A. ; Jiles, D.C.
Author_Institution
Center for NDE, Iowa State Univ., Ames, IA, USA
fYear
2003
fDate
March 30 2003-April 3 2003
Abstract
In this paper, we develop a new magnetic imaging system for non-destructive evaluation of structural and mechanical conditions of materials. This produces a multi-parameter contour plot of the spatial variations of variety of magnetic properties such as coercivity, remanence, permeability and Barkhausen effect signal. Also we have developed an integrated sensor probe capable of measuring both magnetic hysteresis and BE signals using magnetoresistive devices.
Keywords
Barkhausen effect; coercive force; ferromagnetic materials; magnetic hysteresis; magnetic permeability; magnetic sensors; nondestructive testing; remanence; steel; BE signal; Barkhausen effect signal; coercivity; magnetic hysteresis; magnetic imaging system; magnetoresistive device; nondestructive evaluation; permeability; remanence; Coercive force; Magnetic devices; Magnetic materials; Magnetic properties; Magnetic sensors; Magnetoresistive devices; Mechanical sensors; Permeability; Probes; Remanence;
fLanguage
English
Publisher
ieee
Conference_Titel
Magnetics Conference, 2003. INTERMAG 2003. IEEE International
Conference_Location
Boston, MA, USA
Print_ISBN
0-7803-7647-1
Type
conf
DOI
10.1109/INTMAG.2003.1230671
Filename
1230671
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