Abstract
The results of the experimental researches for minimizing the own noise level of the flux-gate sensors with the cores based on the amorphous magnetic material Co 68 Fe 3 Cr 3 Si 15 B 12 are presented. The measurements of the sensor noise level with the cores, which were subjected to the thermo-magnetic treatments with different parameters, are carried out. It is shown, that the annealing at the temperatures 430-445 °C followed by the unregulated cooling with the time constant 400 s provides the minimal noise level of the fluxgate sensors.
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