A new amorphous ribbon fluxgate sensor based on torsional-creep-induced anisotropy

• Published in: IEEE transactions on magnetics Vol. 26; no. 1; pp. 276 - 280
• Main Authors: Nielsen, O.V., Gutierrez, J., Hernando, B., Savage, H.T.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.01.1990; Institute of Electrical and Electronics Engineers
• Subjects: Amorphous magnetic materials; Amorphous materials; Anisotropic magnetoresistance; Coils; Detectors; Exact sciences and technology; Instruments, apparatus, components and techniques common to several branches of physics and astronomy; Magnetic anisotropy; Magnetic components, instruments and techniques; Magnetic cores; Magnetic sensors; Perpendicular magnetic anisotropy; Physics; Wire; Magnetometers; Non linear material; Flux gate magnetometer; Magnetic anisotropy; Measurement sensor; Ferromagnetic materials; Experimental study; Magnetic field
• ISSN: 0018-9464; 1941-0069
• DOI: 10.1109/20.50554

The fluxgate sensor presented consists of a hairpin-shaped nonmagnetostrictive amorphous metal ribbon which carries the excitation AC current. Even harmonics are induced in a surrounding coil, which can be used both as a pickup coil and as a field compensation coil. The principle of operation is similar to that of a traditional ring-core system except that the core itself carries the excitation current. The sensor competes favorably with traditional fluxgate sensors with respect to simplicity, miniaturization, signal level, and noise level.< >