FIELD: electromagnetic methods for earth sounding using harmonic fields which are generated by inductance. SUBSTANCE: method involves detection of ratio between magnetic field intensity with respect to two orthogonal directions, measuring of field intensity 
and 
for all working distance along to fixed orthogonal directions 
and 
which are calculated using inclination angle of ellipse of polarization of magnetic field for minimal working distance and frequency which conform to condition 
. Maximal distance conforms to condition 
. EFFECT: increased functional capabilities. 4 dwg
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