| 基于FPGA的3道生理信号检测仪硬件电路设计 |
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| 引用本文： | 张鹏,孙万蓉,常莹,万连城.基于FPGA的3道生理信号检测仪硬件电路设计[J].电子科技,2007(12):60-63. |
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| 作者姓名： | 张鹏 孙万蓉 常莹 万连城 |
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| 作者单位： | 西安电子科技大学,电子工程学院,陕西,西安,710071 |
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| 摘 要： | 介绍了用于心电、心音、胸阻抗信号测量的3道生理信号检测仪的硬件电路设计,描述了3种信号的调理电路、串行A/D转换及FPGA电路,调理电路设计充分考虑了防止共模干扰和工频干扰,并提高了电路的共模抑制比。采用FPGA完成数字电路部分控制,连接键盘、彩色液晶屏作为人机交互设备。实测表明,系统工作稳定,性能良好。
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| 关 键 词： | 心电信号 心音信号 胸阻抗信号 FPGA |
| 收稿时间： | 2007-06-26 |
| 修稿时间： | 2007年6月26日 |
Circuit Design of a FPGA-Based Three-Channel Physiological Apparatus |
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| Zhang Peng,Sun Wanrong,Chang Ying,Wan Liancheng.Circuit Design of a FPGA-Based Three-Channel Physiological Apparatus[J].Electronic Science and Technology,2007(12):60-63. |
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| Authors: | Zhang Peng Sun Wanrong Chang Ying Wan Liancheng |
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| Abstract: | This paper proposes a hardware circuit design of a three - channel physiological apparatus for measuring three kinds of physiological signals, namely the electrocardiogram, heart sound and impedance cardi-ography. The modulation circuits of the three physiological signals, serial A/D and FPGA circuit are designed using instrument amplifier structure to promote KCMR of the circuit. Digital module is implemented in FPGA. Keyboard and color LCD are used as communication interface. Experiments show that this system is of stability and good performance. |
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| Keywords: | electrocardiogram (ECG) heart sound impedance cardiography (ICG) FPGA |
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