Orthogonal Fluxgate of Low Noise by Electrodeposited Multilayers Amorphous Wires

Sensors based on bulk soft magnetic materials: Advances and challenges

“…As the magnetic field in the inner part of the conductor is low, which causes perming, the favorable design is a non-magnetic conductor covered by magnetically soft thick layer. The diameter should be kept low in order to reduce the required excitation current: sensor having 0.3-mm-diameter copper core requires 250 mA excitation [15].…”

Two-Domain Model for Orthogonal Fluxgate

“…The conductor is either a circular wire [1], [2] or rectangular rod [3]. In such case the magnetic core on the surface of the conductor is better saturated by the excitation current [4]. The orthogonal fluxgate is more sensitive than the "off-diagonal GMI" (or IWE) mode [5].…”