FIELD: measurement technology. SUBSTANCE: in compliance with method of determination of increase of magnetic field of the Earth points along path of movement of carrier are chosen. Synchronous measurements of summary magnetic field of the Earth are conducted during each measurement cycle. For increase of precision m points are chosen which number is not less than three, they are located at equal distance 1 one from the other, measurement cycles are repeated not less than S/2-(m-2) times over specified section of path. Each subsequent measurement cycle is conducted after displacement of carrier through distance 1 along path of movement. Values of summary magnetic field of the Earth by which increments of magnetic field of the Earth are evaluated are compared at each point during two consecutive measurement cycles. EFFECT: increased precision of measurement.
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