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18 April 2022 Magnetoelectric magnetometer characterization for current sensors
Nersesse Nersessian
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Proceedings Volume PC12043, Active and Passive Smart Structures and Integrated Systems XVI; (2022) https://doi.org/10.1117/12.2612100
Event: SPIE Smart Structures + Nondestructive Evaluation, 2022, Long Beach, California, United States
Abstract
The use of magnetoelectric based magnetometers as a rotary position and speed sensor when coupled with a magnetic encoder is investigated in this study. Such magnetometers typically operate at saturation to minimize jitter induced measurement errors. Magnetoelectric laminates fabricated with a high piezomagnetic coefficient magnetostrictive layer reach saturation at relatively low applied magnetic field levels. This makes magnetoelectric magnetometers appealing as rotary sensors from the standpoint of being able to mitigate jitter at a large standoff while possessing the additional benefit of passive operation. 2-2- configuration magnetoelectric laminates composed of Metglas and PZT5A were fabricated and magnetically characterized to demonstrate their rotary sensing capabilities.
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Nersesse Nersessian "Magnetoelectric magnetometer characterization for current sensors", Proc. SPIE PC12043, Active and Passive Smart Structures and Integrated Systems XVI, (18 April 2022); https://doi.org/10.1117/12.2612100
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KEYWORDS
Magnetometers
Magnetism
Computer programming
Magnetic sensors
Sensors
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