ADC0809在两路数据采集系统中的应用  

Application of ADC0809 in two channel data collection system

作　　者：冯忠岭[1] 童英华[2] 陈学煌[1] 

机构地区：[1]青海师范大学物理系,青海西宁810008 [2]青海师范大学计算机系,青海西宁810008

出　　处：《电子设计工程》2011年第13期75-77,共3页Electronic Design Engineering

摘　　要：脉搏传感器和心音传感器获取的模拟信号,只有转换成数字信号,才能让单片机进行处理,以及PC机进行后续的波形显示和分析。采用ADC0809中断查询的方法,结合心音、脉搏信号采集系统中两路数据的模数转换实验,得到了稳定、可靠的心音、脉搏信号的数字量。Analog signals which gain from the pulse sensor and the heart sounds sensor,only are converted into the digital signals,it can let the SCM process,as well as PC displays and analyzes the waveform.This article uses the way of ADC0809＇s interruption inquiry,combines with the experiment of two channel data＇s analog-digital conversion in SCM front-end of heart sound,pulse acquisiton system,then this system obtains stable,reliable digital signals of heart sound and pulse.

关 键 词：心音 脉搏 ADC0809 A/D转换 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置] TP273[自动化与计算机技术—控制科学与工程]