Analysis of a Nondestructive Evaluation Technique for Defect Characterization in Magnetic Materials Using Local Magnetic Measurements

Figure 6

Comparison between the measured induction (labelled as Meas, together with the akima interpolant) at the surface of the strips with the computed induction in the minimizer of the cost functional ( final in the legend). The dotted curve ( init) represents the computed induction for the initial configuration. (a) $I=3.0\hspace{0.17em}\hspace{0.17em}\text{A}$. (b) $I=2.5\hspace{0.17em}\text{A}$. (c) $I=2.0\hspace{0.17em}\text{A}$. (d) $I=1.5\hspace{0.17em}\text{A}$. (e) $I=1.0\hspace{0.17em}\text{A}$. (f) $I=0.5\hspace{0.17em}\text{A}$.

(a)

(b)

(c)

(d)

(e)

(f)