摘要
本系统是以AT89C51单片机为核心,采用A/D转换器(ADC0804)将模拟信号转换为数字信号,采用LM35D电压型温度传感器采集室温,实现温度实时显示、高温、低温报警,经实验调试,用该方法对0--100℃范围的温度测量时,测量误差+0.4℃。系统具有廉价,性价比高,工作稳定和抗干扰能力强的特点。
This system regards AT89C51 one-chip computer as the core,adopt A/D converter （ADC0804） to change the analog signal into the digital signal,adopt LM35D voltage type temperature sensor to gather the room temperature,realize that temperature shows, high temperature,low temperature reports.h is a low cost solution about temperature measuring,including onechip computer temperature-controlled system and the realize of wide quantity high- accuracy automatic measurement.Debugged by the experiment,when this system surveys the temperature of 0 ℃- 100℃ range,the measure error is ＋0.4 ℃.It has some characters of cost cheap,operating reliable, anti-interference performance greatly,
出处
《微计算机信息》
北大核心
2007年第02Z期98-100,共3页
Control & Automation
基金
劳动与社会保障部
项目号:LB200403
