多生理信号参数检测电路设计

The Design of Circuit for Detecting Multi-Physiological Signals

本文设计了心音、血压、脉搏波生理信号的检测及单片机采集电路。通过单片机和主计算机通讯,由主计算机实现多路生理信号的综合处理。主计算机由LabVIEW软件对多路生理信号进行采集、分析和显示。进一步将三种信号进行有机融合,通过多路信号的时间关系计算血管硬化参数。实验结果表明电路稳定、有效,可用于血管功能的评价。

In this paper is presented the design of detection circuit and single chip acquisition circuit for heart sound, blood pressure and pulse wave. The multi-physiological signals from single chip are synthesized and processed by master computer. The master computer acquires, analyzes and displays the multi-signals by Software LabVIEW The three physiological signals are fused to calculate the artery stiffness index by time relation of multi-physiological signals. The experiment shows that the circuit is reliable and effective so that it can be used for human vessel function evaluation.