Investigation of converse magnetoelectric thin-film sensors for magnetocardiography
In principle, electrode-based bioelectrical signal acquisition can be complemented by biomagnetic sensing and therefore requires a more detailed assessment, especially because of the availability of novel noncryogenic sensor technologies. The current development of thin-film magnetoelectric (ME) sen...
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| Main Authors: | , , , , , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
27 January 2023
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| In: |
IEEE sensors journal
Year: 2023, Volume: 23, Issue: 6, Pages: 5660-5669 |
| ISSN: | 1558-1748 |
| DOI: | 10.1109/JSEN.2023.3237910 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://dx.doi.org/10.1109/JSEN.2023.3237910
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| Author Notes: | Eric Elzenheimer, Patrick Hayes, Lars Thormählen, Erik Engelhardt, Adrian Zaman, Eckhard Quandt, Norbert Frey, Michael Höft, Gerhard Schmidt |
| Summary: | In principle, electrode-based bioelectrical signal acquisition can be complemented by biomagnetic sensing and therefore requires a more detailed assessment, especially because of the availability of novel noncryogenic sensor technologies. The current development of thin-film magnetoelectric (ME) sensors ensures that ME technology is becoming a prospective candidate for biomagnetometry. The main obstacle for large-scale usage is the lack of extremely low noise floors at the final sensor system output. This article highlights the current state of ME sensor development based on a magnetocardiography (MCG) pilot study involving a healthy volunteer in a magnetically shielded chamber. For assessment, an ME prototype (converse ME thin-film sensors) will be applied for the first time. This sensor type ensures a noise amplitude spectral density below 20 pT / \sqrt \text Hz at 10 Hz by using a sophisticated magnetic layer system. The main aim of this pilot study is to evaluate the applicability of this promising sensor for the detection of a human heart signal and to evaluate the sensor output with competitive optical magnetometry technology. A magnetic equivalent of a human R wave could be successfully detected within a 1-min measurement period with the sensor presented here. Finally, the article will provide an outlook on future ME perspectives and challenges, especially for cardiovascular applications. |
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| Item Description: | Gesehen am 17.05.2023 |
| Physical Description: | Online Resource |
| ISSN: | 1558-1748 |
| DOI: | 10.1109/JSEN.2023.3237910 |