Rv. Zagidulin, CALCULATION OF CLASSIFICATION FEATURES OF CONTINUITY DEFECTS OF FINITE EXTENT IN FERROMAGNETIC ARTICLES, Russian journal of nondestructive testing, 31(10), 1995, pp. 764-772
The magnetic field of a surface defect of finite extent in a linear me
dium is calculated and its expansion in a multiple Fourier series whos
e coefficients can be used for characterizing and determining the geom
etric parameters of continuity defects is shown.