| Original Articles |
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An Economical Magnetocardiogram System Based on High-Tc SQUIDs |
| LI Zhuo;ZHU Xue-Min;ZHANG Li-Hua;HUANG Xu-Guang;REN Yu-Feng;CHEN Geng-Hua;YANG Qian-Sheng;FENG Ji |
| Beijing National Laboratory for Condensed Matter Physics, nstitute of Physics, Chinese Academy of Sciences,
Beijing 100080 |
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| Cite this article: |
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LI Zhuo, ZHU Xue-Min, ZHANG Li-Hua et al 2006 Chin. Phys. Lett. 23 2319-2322 |
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Abstract An economical magnetocardiogram (MCG) system is built in our laboratory. It mainly consists of a MCG data acquisition stage equipped with two high-Tc superconducting quantum interference device (SQUID) magnetometers, a data processing stage with digital filtering and a one-layer μ-metal magnetically shielded room in conjunction with a high-Tc SQUID based active compensation. Experimental results show that a noise level of pico-tesla in MCG profiles, which is necessary for clinical applications, may be achieved with the system. Moreover, stable and convenient operations of the system are demonstrated with simulating MCG measurements.
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| Keywords:
87.80.Tq
07.55.Nk
85.25.Dq
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Published: 01 August 2006
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| PACS: |
87.80.Tq
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07.55.Nk
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(Magnetic shielding in instruments)
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85.25.Dq
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(Superconducting quantum interference devices (SQUIDs))
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