DEVICE FOR MAGNETIC FIELDS MEASUREMENT Russian patent published in 2017 - IPC G01R33/00 

FIELD: measurement equipment.

SUBSTANCE: device for measurement of magnetic fields comprises: voltage regulator, first switch, trigger, first delay element, and serially connected fluxgate sensor, preamplifier, frequency-selective amplifier, phase sensitive demodulator, analog integrator, analog-digital converter and digital computer. The output of the analog integrator via the first scaling resistor is connected to the compensation winding of the flux-gate sensor, whose control winding via the second scaling resistor is connected to the output of the first switch. Introduction of "or" element, the second delay element, the second switch, the third scale resistor and formation of new functional connections can improve the depth of autonomous automatic test control of the device serviceability.

EFFECT: improved measurement reliability.

1 dwg