Abstract
Here the fundamentals of magnetic sensing are introduced and several types of magnetic flux and field sensors are presented. Flux sensors are inductive coils, fluxgates, and SQUIDs. Field sensors depend on Hall effect, anisotropic magnetoresistance, spin electronics (giant magnetoresistance and tunnel magnetoresistance), optical pumping, giant magnetoimpedance, and magnetoelectric effects. Some specific readout schemes are discussed. The noise aspect is discussed and comparative tables are provided of the various sensors including their sensitivity, field range, minimal detectable noise, advantages, and drawbacks.
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Pannetier-Lecoeur, M., Fermon, C. (2021). Magnetic Sensors. In: Coey, J.M.D., Parkin, S.S. (eds) Handbook of Magnetism and Magnetic Materials. Springer, Cham. https://doi.org/10.1007/978-3-030-63210-6_30
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DOI: https://doi.org/10.1007/978-3-030-63210-6_30
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