FLUXGATE MAGNETOMETER Russian patent published in 2008 - IPC G01R33/02 

FIELD: measuring instruments.

SUBSTANCE: fluxgate magnetometer comprises an excitation coil with a saturable magnetic core, a detector, a field generator, a load resistor with a parallel-connected low-pass filter, a negative feedback circuit being formed by a first capacitor, an excitation coil, a second capacitor, a detector and a load resistor with a parallel-connected low-pass filter, all of them being connected in series, wherein a direct current amplifier output is galvanic-coupled via an isolation resistor with a high-potential output of the excitation coil and a low-potential output of the excitation coil is galvanic-coupled with a reference resistor via another low-pass filter being connected to a gauge.

EFFECT: increasing the accuracy of measurements.

5 cl, 1 dwg