Principe de fonctionnement du capteur de courant fluxgate haute précision :

Sous l'action du courant d'excitation positif et négatif, le noyau magnétique facile à saturer est utilisé pour faire changer l'inductance du noyau magnétique avec l'amplitude du courant d'excitation, de sorte que le flux magnétique du noyau magnétique change en continu.

Le fluxgate current sensor 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.