示波法智能血压计系统设计  

Oscilloscope System Design Method of Intelligent Device

作　　者：陈洪燕 孙超 王游司 王烈进 CHEN Hongyan;SUN Chao;WANG Yousi;WANG Liejin(Neijiang Normal University,Sichuan Neijiang,641000,China)

机构地区：[1]内江师范学院,四川内江641000

出　　处：《数码设计》2018年第3期44-45,49,共3页Peak Data Science

摘　　要：定期测量血压是许多中老年日常生活中必不可少的事情。针对测量血压的不便,本文采用示波法测量血压,它主要包括压力传感器、滤波和血压算法三个部分。该系统由气泵向袖带内充气,到达一定压力值后慢速放气。在放气过程中,压力传感器将袖带内压力信号转换为电信号,电信号通过滤波器得到抛物线包络的脉动压力波,最后由血压算法计算收缩压、舒张压和平均血压。Measuring blood pressure regularly is an essential part of many middle-aged and old People's Daily lives.For the inconvenience of measuring blood pressure,Blood pressure was measured by oscillography,it mainly includes three parts:pressure sensor,filter and blood pressure algorithm.The system is inflated by the air pump to the cuff,and after reaching a certain pressure value,it is released slowly.In the process of deflated,pressure sensor in the cuff pressure signal is converted to electrical signals,the electrical signal is obtained by filter parabolic pressure wave in the pulse of the envelope,finally calculated by the blood pressure algorithm,systolic pressure,diastolic pressure and mean blood pressure.

关 键 词：示波法 压力传感器 LM3S1138 A/D转换 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]