A nagy pontosságú fluxgate áramérzékelő működési elve:

Pozitív és negatív gerjesztőáram hatására a könnyen telíthető mágneses mag segítségével a mágneses mag induktivitását a gerjesztőáram nagyságával változtatják, így a mágneses mag mágneses fluxusa folyamatosan változik.

A 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.