正と負の励磁電流の作用下で、飽和しやすい磁気コアを使用して、励磁電流の大きさに応じて磁気コアのインダクタンスが変化し、磁気コアの磁束が連続的に変化します。

の フラックスゲート電流センサー uses the non-linear relationship between the magnetic induction intensity and the magnetic field intensity of the high magnetic permeability core in the measured magnetic field under the saturation excitation of the alternating magnetic field to measure the weak magnetic field. This physical phenomenon seems to be a “gate” to the measured ambient magnetic field. Through this “gate”, the corresponding magnetic flux is modulated and an induced electromotive force is generated. This phenomenon is used to measure the magnetic field generated by the current, so as to indirectly achieve the purpose of measuring the current.