MODE OF MEASURING THE DIRECTION OF A MAGNETIC FIELD Russian patent published in 2006 - IPC G01R33/02 

FIELD: the invention refers to flux-gate meters particularly to geophysical methods for example at drill hole survey.

SUBSTANCE: the mode of measuring the direction of a magnetic field is in using a flux-gate with one ferromagnetic core and a single winding on which they supply short positive and negative impulses of excitation following with a given frequency and feed quasi constant compensation current of the measured magnetic field from the outlet of the integrator and information impulses from this winding are supplied on synchronous detector. The detector converts the information signal and the integrator singles out constant component and gives it in the shape of quasi constant voltage on the flux-gate and on the measuring arrangement.

EFFECT: using of only one winding, only one circuit of excitation and a discharge practically excludes unbalance of processing of the signal and reduces requirements to identity of the elements of the processing system and this increases temperature stability and accuracy of measuring.

1 cl, 2 dwg