Patent ID: 11892475
Assignee: SAFRAN ELECTRICAL & POWER
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A current sensor comprising:
one pair of identical electrical coils with superparamagnetic cores and surrounded by a common shielding braid;
a direct current excitation means configured to make a direct current flow in at least one of the coils of the pair of coils and a means for adjusting an intensity of the direct current;
a first alternating current excitation means configured to make an alternating current flow at a first frequency in the coils of the pair that the direct current flows through;
a second alternating current excitation means configured to make an alternating current flow at a second frequency greater than the first frequency in both coils of the pair of coils;
a means of measuring an electromotive force of the Néel Effect® type at the terminals of the two coils of the pair, and
a means of measuring an electromotive force of the Rogowski type at the terminals of at least one of the coils of one of the pairs that the direct current and the alternating current does not flow through at the first frequency.