Magnetoelectric sensors for biomagnetic measurements

descriptionPublicationkeyboard_double_arrow_right Article 01 May 2011Publisher:IEEEJournal:2011 IEEE International Symposium on Medical Measurements and Applications

Authors: Robert Jahns; Reinhard Knochel; Henry Greve; Eric Woltermann; Enno Lage; Eckard Quandt;

doi: 10.1109/memea.2011.5966676

Magnetoelectric sensors for biomagnetic measurements

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Abstract

Magnetoelectric sensors are assumed to be capable of biomagnetic measurements like magnetoencephalography (MEG) and magnetocardiography (MCG). In this paper a thin film sensor with a ME coefficient of α ME = 450 V/cmOe at a resonance frequency of f res = 678.5 Hz is investigated. Measurements show that this sensor reaches a noise level of 7.5 pT/√Hz at resonance and that field strengths in the picotesla range can be detected, which is well in the range of biomagnetic signals.

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Kiel University
Germany

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