Magnetoelectric sensors for biomagnetic measurements
R Jahns, R Knöchel, H Greve… - 2011 IEEE …, 2011 - ieeexplore.ieee.org
R Jahns, R Knöchel, H Greve, E Woltermann, E Lage, E Quandt
2011 IEEE international symposium on medical measurements and …, 2011•ieeexplore.ieee.orgMagnetoelectric 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.
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.
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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