Measurements of the magnetocardiography in unshielded environment using high-Tc rf SQUID gradiometer

被引：3
|
作者：
He, DF [1 ]
Zhang, F [1 ]
Xie, FX [1 ]
Dai, YD [1 ]
Wang, SG [1 ]
Ma, P [1 ]
Yang, T [1 ]
Wang, SZ [1 ]
Chen, WC [1 ]
Wang, ZQ [1 ]
机构：
[1] Peking Univ, Dept Phys, Beijing 100871, Peoples R China
来源：
PHYSICA C | 2000年 / 341卷
关键词：
D O I：
10.1016/S0921-4534(00)01429-5
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We recorded the 9-point magnetocardiography (MCG) of a normal person in an unshielded environment by using a first-order gradiometer made by subtracting the outputs of two high-T-c YBGO rf SQUID magnetometers. A compensation method was used to cancel the 50Hz line interference. After data processing and averaging, the fine structures of the heart signal (P-wave, Q,R,S-complex, T-wave) could be seen clearly and a SNR of 120 could be obtained.
引用
收藏
页码：2635 / 2636
页数：2
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