A single-channel SQUID magnetometer for measuring magnetic field of human fetal heart

Wesam Bachir; Przemyslaw Grot; Zbigniew Dunajski

doi:10.1117/12.569044

22 July 2004 A single-channel SQUID magnetometer for measuring magnetic field of human fetal heart

Wesam Bachir, Przemyslaw Grot, Zbigniew Dunajski

Proceedings Volume 5484, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments II; (2004) https://doi.org/10.1117/12.569044
Event: Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments II, 2003, Wilga, Poland

Abstract

A non-invasive single-channel SQUID magnetometer for fetal magnetocardiography has been developed. The signal is picked-up with a wire wound third order gradiometer. The optimal configuration of the flux transformer is a trade-off between sufficient sensitivity for the magnetic field originated in fetal heart and effective immunity against the ambient magnetic noise. The over all system performance together with the measuring probe and SQUID electronics is described. The balancing of the third order flux transformer is discussed as well as the signal processing of fetal magnetocardiogram recordings.

Citation Download Citation

Wesam Bachir, Przemyslaw Grot, and Zbigniew Dunajski "A single-channel SQUID magnetometer for measuring magnetic field of human fetal heart", Proc. SPIE 5484, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments II, (22 July 2004); https://doi.org/10.1117/12.569044

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