Fluxgate magnetometer with rotating core

摘要

A magnetometer for measuring a magnetic field, comprising a fluxgate sensor with at least one ferromagnetic core, a primary, electrically conducting coil arranged around the core for periodical magnetisation of the core into magnetic saturation by an alternating electric current through the primary coil, and a secondary, electrically conducting coil arranged around the at least one ferromagnetic core for producing a measurable electromotive force as a response signal, wherein the magnetometer has means for rotating the at least one core of the fluxgate sensor with a steady rotation inside the coils during the measurement of the magnetic field.