Copper permalloys for fluxgate magnetometer sensors

• Published in: Geoscientific instrumentation, methods and data systems Vol. 13; no. 1; pp. 131 - 161
• Main Authors: Narod, B. Barry, Miles, David M
• Format: Journal Article
• Language: English
• Published: Gottingen Copernicus GmbH 05.06.2024; Copernicus Publications
• Subjects: Alloys; Anisotropy; Copper; Cores; Ferromagnetism; Ferrous alloys; Fluxgate magnetometers; Investigations; Iron; Iron constituents; Laboratories; Magnetic alloys; Magnetic field; Magnetic fields; Magnetic properties; Magnetometers; Metallurgical constituents; Molybdenum; Molybdenum alloys; Molybdenum base alloys; Nickel; Noise; Noise measurement; Permeability; Power consumption; Sensors; United States > US

Fluxgate magnetometers are commonly used to provide high-fidelity vector magnetic field measurements. The magnetic noise of the measurement is typically dominated by that intrinsic to a ferromagnetic core used to modulate (gate) the local field as part of the fluxgate sensing mechanism. A polycrysta...