TWO-CHANNEL PROPORTIONAL-DIFFERENTIAL FERROPROBE Russian patent published in 2024 - IPC G01R33/02 

FIELD: measurement.

SUBSTANCE: invention relates to magnetic measurements using ferroprobe magnetometers. Two-channel proportional-differential ferroprobe comprises an alternating current generator, an excitation amplifier, toroidal excitation transformer, consisting of a core from an amorphous ferromagnetic alloy and primary and secondary excitation windings, two measuring circuits, each of which includes a non-magnetic conductive core of a measuring transformer with a coating from an amorphous ferromagnetic alloy with primary and secondary windings and measuring oscillatory circuit formed by secondary winding of measuring coaxial transformer solenoid and capacitor, connected to each measuring circuit in series a preamplifier and a synchronous detector, configured to supply a signal to a passive resistive proportional mixer, wherein cores of measuring transformers are arranged coaxially and provided with coating of amorphous ferromagnetic alloy on top of the insulator.

EFFECT: creation of a two-channel proportional-differential ferroprobe, which has a low level of intrinsic noise, the possibility of functioning in high-frequency ranges, in increasing the sensitivity and accuracy of measuring the components of the magnetic field induction vector, elimination of response to inclination to the ground or to turn around axis, increase of measurement speed and reliability of operation.

7 cl, 4 dwg