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Proceedings Paper

A single-channel SQUID magnetometer for measuring magnetic field of human fetal heart
Author(s): Wesam Bachir; Przemyslaw Grot; Zbigniew Dunajski
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Paper 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.

Paper Details

Date Published: 22 July 2004
PDF: 5 pages
Proc. SPIE 5484, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments II, (22 July 2004); doi: 10.1117/12.569044
Show Author Affiliations
Wesam Bachir, Warsaw Univ. of Technology (Poland)
Przemyslaw Grot, Warsaw Univ. of Technology (Poland)
Zbigniew Dunajski, Warsaw Univ. of Technology (Poland)


Published in SPIE Proceedings Vol. 5484:
Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments II
Ryszard S. Romaniuk, Editor(s)

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