室内甲醛含量自动检测系统的设计与实现  

Design and implementation of indoor formaldehyde levels automatic detection system

作　　者：桂彩云[1] 杨宏亮[2] 

机构地区：[1]榆林学院,榆林719000 [2]西安科技大学,西安710054

出　　处：《国外电子测量技术》2014年第7期40-44,共5页Foreign Electronic Measurement Technology

基　　金：高层次人才科研启动基金(13K36)项目

摘　　要：甲醛作为一种无色剧毒气体,影响到人们的健康,为了快速准确检查室内甲醛浓度,系统以AT89C51单片机为核心,选用专用甲醛传感器,甲醛气体经过传感器得到信号后,输入到A/D转换器,经单片机进行相应的数据处理后,把数字信号输入到LCD1602显示器,把相应的气体浓度值显示出来。仿真表明,该系统可以达到实时检测甲醛气体浓度的目的,且误差小、精度高、结构简单,具有很高的性价比,特别适合家庭及小公司使用。Formaldehyde as a colorless and toxic gas that affects people＇s health,in order to quickly and accurately checks the indoor concentration of formaldehyde,the system based on AT89C51control cor,using special sensors of formaldehyde.After geting the formaldehyde gas signal by sensors,the signal can be input to the A/D converter,and the results can be processed by AT89C51.The digital signal which gets from AT89C51can be input to the LCD1602display,and the corresponding gas concentration is displayed.The simulation proves that the system can achieve real-time detection of formaldehyde gas concentration,and the error is small,high precision,simple structure,with a high value for money,especially for families and small business use.

关 键 词：甲醛含量检测 检测系统设计 仿真与调试 

分 类 号：TP277[自动化与计算机技术—检测技术与自动化装置]