华东师范大学学报(自然科学版) ›› 2004, Vol. 2004 ›› Issue (4): 40-47.

• 物理 电子科学技术 • 上一篇    下一篇

微波心动图仪的设计和研制

黄勇1,安同一1,钱鉴2,樊明捷1   

  1. 1.华东师范大学 信息科学技术学院,上海200062; 2.南京大学 电子科学与工程系,南京210093
  • 收稿日期:2003-02-28 修回日期:2003-04-15 出版日期:2004-12-25 发布日期:2004-12-25
  • 通讯作者: 黄勇

Design and Development of A Microwave Cardio Graph Meter

HUNG Yong1,AN Tong-yi1,QIAN Jian2,FAN Ming-jie1   

  1. 1. Information Science and Technology College,East China Normal University, shanghai 200062,China; 2. Department of Electrical Science and Engineering, Nanjing University, Nanjing 210093,China
  • Received:2003-02-28 Revised:2003-04-15 Online:2004-12-25 Published:2004-12-25
  • Contact: HUNG Yong

摘要: 设计了一个能够提取人体微波心动图的“微波心动图仪”.该仪器使用1 150 MHz微波连续波作为载波信号,用计算机控制的零平衡方法进行未调制载波抵消,用检测前向散射波(透射波)的方法绘制心动图.所研制的样机具有结构简单、灵敏度高、噪声小的特点.还给出了该样机采集的微波心动图样例,并进行了讨论.

关键词: 微波心动图, 前向散射, 未调制载波抵消, 微波心动图, 前向散射, 未调制载波抵消

Abstract: A design of Microwave Cardio Graph Meter (MCG),by which human signal can be extracted is proposed in this paper. Features: 1 150 MHz continuous ca rrter wave; Cancellation of un-modulated carrier wave by Zero-balance technique; Using forward scattering wave to improve performance. Experiments show that: the apparatus is simple in structure, and works steadily with high sensitivity and low noise. The MCG graphs are presented and discussed in detail.

Key words: forward scattering, cancellation of un-modulated carrier wave, microwave cardio graph, forward scattering, cancellation of un-modulated carrier wave

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