FIELD: measurement.
SUBSTANCE: combined composite core of magnetic field induction transducer for electromagnetic methods of geophysical electrical prospecting contains permalloy rod, on whole length of which string is fused and glued to each other and bar by means of ferrite rings, forming reinforced composite core, increasing the length of which expansion of working range of frequencies in the area of low frequencies is achieved, reduction of losses for eddy currents in permalloy, reduction of diameter of rod and use in design of ferrite core is achieved expansion of range in the area of high frequencies.
EFFECT: device is intended for use in induction converters of magnetic field for electromagnetic methods, geophysical electrical prospecting in wide frequency range.
1 cl, 1 dwg
