Research on Atomic Magnetometers for Magnetocardiography Integrated with Virtual Instrumentation Technology
This paper presents a new design for an atomic magnetometer for magnetocardiography, which can be easily extended to multi-channel measurements. Virtual instruments are used to demodulate and amplify the photonic signals, enabling signal extraction from input signals with a signal-to-noise ratio of...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2025-01-01
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| Series: | BIO Web of Conferences |
| Online Access: | https://www.bio-conferences.org/articles/bioconf/pdf/2025/17/bioconf_icbemd2025_02004.pdf |
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| Summary: | This paper presents a new design for an atomic magnetometer for magnetocardiography, which can be easily extended to multi-channel measurements. Virtual instruments are used to demodulate and amplify the photonic signals, enabling signal extraction from input signals with a signal-to-noise ratio of no less than 30 dB. The system based on this design achieves simultaneous demodulation of two-channel signals, with an open-loop sensitivity of 18 fT/Hz1/2 at 17 Hz and a bandwidth of 128 Hz. In open-loop mode, the system successfully measured an analog magnetocardiogram signal with an amplitude of 100 pT, accurately capturing the P-, QRS-, and T-waveforms, offering a novel approach for multi-channel biomagnetic field measurement. |
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| ISSN: | 2117-4458 |