光电脉搏血氧心率仪电路设计  

Circuit Design of Photoelectric Pulse Oximeter

作　　者：郑万挺[1] 陈付毅[1] 

机构地区：[1]温州医学院生物医学工程系,浙江温州325035

出　　处：《电子器件》2010年第6期786-789,共4页Chinese Journal of Electron Devices

摘　　要：简要介绍了基于脉搏血氧测量原理,利用硅光电池检测血氧饱和度的技术,设计了一个检测血氧监测心率的光电脉搏血氧心率仪。系统采取以单片机STC89C58RD+为核心,辅以脉冲控制、信号采集、信号处理三部分电路,同时对血氧饱和度和心率进行检测,并将测试结果通过LCD显示。经实际人体测试检验,血氧饱和度为93～98、心率为70～75,达到了实际测试要求。系统具有成本低、结构合理、制作简单、安全可靠等优点。Based on the use of silicon photovoltaic cells to detect oxygen saturation of the technology,the principle of pulse oximete is presented and a test to monitor heart rate and blood oxygen heart rate optical pulse oxygen meter was designed.The system adopts MCU STC89C58RD＋ as the core,with three circuits of impluse control circuit,the signal acquisition circuit,signal processing circuit for testing the blood oxygen and heart rate at the same time,and the testing results will be displayed by LCD.For actual persons testing,the blood oxygen is from 93 to 98 and the heart rate is from 70 to 75,and it meets the actual testing requirement.The system has advantages of low cost,reasonable structure,simple,safe and reliable.

关 键 词：血氧饱和度 脉搏血氧测量原理 硅光电池 单片机STC89C58RD+ 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]