Design aspects of the FHARMON fetal heart monitor

A.P. Rijpma; H.J.M. Brake, ter; J. Borgmann; H.J.G. Krooshoop; H. Rogalla

Design aspects of the FHARMON fetal heart monitor

A.P. Rijpma
, H.J.M. Brake, ter
, J. Borgmann
, H.J.G. Krooshoop
, H. Rogalla

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

Abstract

A promising application of SQUID magnetometers is the magnetic measurement of fetal heart activity. A fetal heart monitor based on high-Tc SQUIDs is under development at the University of Twente. In order to operate outside a shielded environment, active compensation is applied to suppress the earth's field. Next, to improve the signal-to-noise ratio, a 2nd order gradiometer is formed. For the gradiometer, a baseline of 6 cm is used, based on fetal magnetocardiograms that were recorded with a low-Tc system, of which the baseline could be varied.

Original language	English
Title of host publication	Applied superconductivity 1999 : proceedings of EUCAS 1999, the Fourth European Conference on Applied Superconductivity, held in Sitges, Spain, 14-17 September 1999Applied superconductivity 1999 : $b proceedings of EUCAS 1999, the Fourth European Conference on Applied Superconductivity, held in Sitges, Spain, 14-17 September 1999
Subtitle of host publication	Vol. 2: Electronic applications
Editors	X. Obradors
Publisher	American Institute of Physics
Pages	561-564
Number of pages	4
ISBN (Print)	0750307463
Publication status	Published - 2000

Publication series

Name	Institute of Physics Conference Series
Publisher	IOP Publishing Ltd.
Volume	167
ISSN (Print)	0951-3248

Cite this

Rijpma, A. P., Brake, ter, H. J. M., Borgmann, J., Krooshoop, H. J. G., & Rogalla, H. (2000). Design aspects of the FHARMON fetal heart monitor. In X. Obradors (Ed.), Applied superconductivity 1999 : proceedings of EUCAS 1999, the Fourth European Conference on Applied Superconductivity, held in Sitges, Spain, 14-17 September 1999Applied superconductivity 1999 : $b proceedings of EUCAS 1999, the Fourth European Conference on Applied Superconductivity, held in Sitges, Spain, 14-17 September 1999: Vol. 2: Electronic applications (pp. 561-564). (Institute of Physics Conference Series; Vol. 167). American Institute of Physics.

Rijpma, A.P. ; Brake, ter, H.J.M. ; Borgmann, J. et al. / Design aspects of the FHARMON fetal heart monitor. Applied superconductivity 1999 : proceedings of EUCAS 1999, the Fourth European Conference on Applied Superconductivity, held in Sitges, Spain, 14-17 September 1999Applied superconductivity 1999 : $b proceedings of EUCAS 1999, the Fourth European Conference on Applied Superconductivity, held in Sitges, Spain, 14-17 September 1999: Vol. 2: Electronic applications. editor / X. Obradors. American Institute of Physics, 2000. pp. 561-564 (Institute of Physics Conference Series).

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title = "Design aspects of the FHARMON fetal heart monitor",

abstract = "A promising application of SQUID magnetometers is the magnetic measurement of fetal heart activity. A fetal heart monitor based on high-Tc SQUIDs is under development at the University of Twente. In order to operate outside a shielded environment, active compensation is applied to suppress the earth's field. Next, to improve the signal-to-noise ratio, a 2nd order gradiometer is formed. For the gradiometer, a baseline of 6 cm is used, based on fetal magnetocardiograms that were recorded with a low-Tc system, of which the baseline could be varied.",

author = "A.P. Rijpma and \{Brake, ter\}, H.J.M. and J. Borgmann and H.J.G. Krooshoop and H. Rogalla",

year = "2000",

language = "English",

isbn = "0750307463",

series = "Institute of Physics Conference Series",

publisher = "American Institute of Physics",

pages = "561--564",

editor = "X. Obradors",

booktitle = "Applied superconductivity 1999 : proceedings of EUCAS 1999, the Fourth European Conference on Applied Superconductivity, held in Sitges, Spain, 14-17 September 1999Applied superconductivity 1999 : \$b proceedings of EUCAS 1999, the Fourth European Conference on Applied Superconductivity, held in Sitges, Spain, 14-17 September 1999",

address = "United States",

}

Rijpma, AP, Brake, ter, HJM, Borgmann, J, Krooshoop, HJG & Rogalla, H 2000, Design aspects of the FHARMON fetal heart monitor. in X Obradors (ed.), Applied superconductivity 1999 : proceedings of EUCAS 1999, the Fourth European Conference on Applied Superconductivity, held in Sitges, Spain, 14-17 September 1999Applied superconductivity 1999 : $b proceedings of EUCAS 1999, the Fourth European Conference on Applied Superconductivity, held in Sitges, Spain, 14-17 September 1999: Vol. 2: Electronic applications. Institute of Physics Conference Series, vol. 167, American Institute of Physics, pp. 561-564.

Design aspects of the FHARMON fetal heart monitor. / Rijpma, A.P.; Brake, ter, H.J.M.; Borgmann, J. et al.
Applied superconductivity 1999 : proceedings of EUCAS 1999, the Fourth European Conference on Applied Superconductivity, held in Sitges, Spain, 14-17 September 1999Applied superconductivity 1999 : $b proceedings of EUCAS 1999, the Fourth European Conference on Applied Superconductivity, held in Sitges, Spain, 14-17 September 1999: Vol. 2: Electronic applications. ed. / X. Obradors. American Institute of Physics, 2000. p. 561-564 (Institute of Physics Conference Series; Vol. 167).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

TY - GEN

T1 - Design aspects of the FHARMON fetal heart monitor

AU - Rijpma, A.P.

AU - Brake, ter, H.J.M.

AU - Borgmann, J.

AU - Krooshoop, H.J.G.

AU - Rogalla, H.

PY - 2000

Y1 - 2000

N2 - A promising application of SQUID magnetometers is the magnetic measurement of fetal heart activity. A fetal heart monitor based on high-Tc SQUIDs is under development at the University of Twente. In order to operate outside a shielded environment, active compensation is applied to suppress the earth's field. Next, to improve the signal-to-noise ratio, a 2nd order gradiometer is formed. For the gradiometer, a baseline of 6 cm is used, based on fetal magnetocardiograms that were recorded with a low-Tc system, of which the baseline could be varied.

AB - A promising application of SQUID magnetometers is the magnetic measurement of fetal heart activity. A fetal heart monitor based on high-Tc SQUIDs is under development at the University of Twente. In order to operate outside a shielded environment, active compensation is applied to suppress the earth's field. Next, to improve the signal-to-noise ratio, a 2nd order gradiometer is formed. For the gradiometer, a baseline of 6 cm is used, based on fetal magnetocardiograms that were recorded with a low-Tc system, of which the baseline could be varied.

M3 - Conference contribution

SN - 0750307463

T3 - Institute of Physics Conference Series

SP - 561

EP - 564

BT - Applied superconductivity 1999 : proceedings of EUCAS 1999, the Fourth European Conference on Applied Superconductivity, held in Sitges, Spain, 14-17 September 1999Applied superconductivity 1999 : $b proceedings of EUCAS 1999, the Fourth European Conference on Applied Superconductivity, held in Sitges, Spain, 14-17 September 1999

A2 - Obradors, X.

PB - American Institute of Physics

ER -

Rijpma AP, Brake, ter HJM, Borgmann J, Krooshoop HJG, Rogalla H. Design aspects of the FHARMON fetal heart monitor. In Obradors X, editor, Applied superconductivity 1999 : proceedings of EUCAS 1999, the Fourth European Conference on Applied Superconductivity, held in Sitges, Spain, 14-17 September 1999Applied superconductivity 1999 : $b proceedings of EUCAS 1999, the Fourth European Conference on Applied Superconductivity, held in Sitges, Spain, 14-17 September 1999: Vol. 2: Electronic applications. American Institute of Physics. 2000. p. 561-564. (Institute of Physics Conference Series).

Design aspects of the FHARMON fetal heart monitor

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