Simulation of field and inductance spatial distribution in locally magnetized massive objects and optimization of U-shaped transducer design

Author: Kostin V.   Lukinykh O.   Smorodinskii Ya.   Kostin K.  

Publisher: MAIK Nauka/Interperiodica

ISSN: 1061-8309

Source: Russian Journal of Nondestructive Testing, Vol.46, Iss.6, 2010-06, pp. : 403-410

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Abstract

The field and magnetic-inductance spatial distributions in plates that differ in geometric dimensions and magnetic properties, which were magnetized locally by U-shaped electromagnets of different standard sizes, were calculated using the finite element method. The magnetic-flux side scattering, which impedes the magnetization, was estimated qualitatively. Recommendations on designing magnetizing instruments, which are characterized by low side scattering, are given.

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