基于单片机的温度显示仪设计  

Design of a Digital Temperature Indicator Based on a Single-chip Microcomputer

作　　者：帅伟[1] 

机构地区：[1]常州刘国钧高等职业技术学校机电工程系

出　　处：《仪表技术》2017年第9期37-39,42,共4页Instrumentation Technology

摘　　要：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,实现温度显示,高温、低温报警的一种低成本解决方案;内容涉及到单片机温控系统,实现宽量程高精度自动测量,实时显示。In this paper, a digital temperature indicator based on AT89C51 single-chip microcomputer is presented. The A/D converter （ADC0804） was used to convert the analog signal into the digital signal. And the LM35D （voltage type temperature sensor ）was used to gather the room temperature. The system can realize the function of temperature display and giving alarms in high temperature or low temperature environment. The system has the characteristics of lower cost, higher accuracy and real-time monitoring.

关 键 词：单片机 温度传感器 A/D转换 

分 类 号：TH811[机械工程—仪器科学与技术]