1. Investigation of Converse Magnetoelectric Thin-Film Sensors for Magnetocardiography
- Author
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Elzenheimer, Eric, Hayes, Patrick, Thormahlen, Lars, Engelhardt, Erik, Zaman, Adrian, Quandt, Eckhard, Frey, Norbert, Hoft, Michael, and Schmidt, Gerhard
- Abstract
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 /
$\sqrt {\text {Hz}}$ - Published
- 2023
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