| 摘要 |
1. Method of mapping topography of changes in magnetic permeability of solid bodies in magnetic field; is characterised in that involves creation of electromagnetic field with two opposite electromotive forces (E1, E2), with one of them interacting with tested sample (5) and the second force is applied to the standard block; the forces are compensated for the nominated point (P) of tested sample (5), the sample (5) is moved across and, values of variances in electromotive forces proportional to changes in magnetic permeability in relation to permeability of sample being tested are marked (5) for each position on the sample surface (5), in selected position (P).<IMAGE>
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