中国物理B ›› 2013, Vol. 22 ›› Issue (12): 128501-128501.doi: 10.1088/1674-1056/22/12/128501
• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇 下一篇
张树林a b, 张国峰a b, 王永良a b, 刘明a b, 李华a b c, 邱阳a b c, 曾佳a b c, 孔祥燕a b, 谢晓明a b
Zhang Shu-Lin (张树林)a b, Zhang Guo-Feng (张国峰)a b, Wang Yong-Liang (王永良)a b, Liu Ming (刘明)a b, Li Hua (李华)a b c, Qiu Yang (邱阳)a b c, Zeng Jia (曾佳)a b c, Kong Xiang-Yan (孔祥燕)a b, Xie Xiao-Ming (谢晓明)a b
摘要: Fetal magnetocardiography (MCG) is a sophisticated non-invasive technique for the fetal heart diagnosis. We constructed a multichannel fetal MCG system based on a novel superconducting quantum interference device (SQUID) direct readout scheme called SQUID bootstrap circuit (SBC). The system incorporates four SBC gradiometers for the signal detection and three SBC magnetometers as the references. The fetal MCG signal at a 28-weeks’ gestation was measured. By the fetal MCG signal separation and average, the P-wave and QRS complex can be clearly identified. These results indicate that the SBC is one of the most promising techniques for the fetal MCG recordings.
中图分类号: (Superconducting quantum interference devices (SQUIDs))