FIELD: the invention refers to measuring technique particularly to devices for measuring alternating magnetic fields of optional form of low levels in conditions of influence of electromagnetic, dynamic mechanical and/or thermal destabilizing factors of environment.
SUBSTANCE: the sensitive element of a sensor of multiturn inductance coil is fulfilled in the shape of two inductance coils, primary and auxiliary, in-series connected. At that the primary inductance coil is fulfilled with a few turns and placed directly in the measuring zone. The auxiliary coil is fulfilled multiturn and distantly moved away from the primary coil. The first output of the primary inductance coil is connected through a separated capacity with the input of the amplifier-converter and through the second output of the auxiliary coil is connected with a common bus-bar of the amplifier-converter. The output of the amplifier-converter is switched to the input of a recorder.
EFFECT: increases sensitiveness.
2 dwg
