摘要
人的一生中平均有80%-90%以上时间在室内度过,所以室内空气质量的好坏直接影响人们的身体健康。因此,对室内空气质量参数测量仪的研究具有重要的现实意义。系统采用STC12C5A60S2作为核心处理器,采用电化学4OXV氧气传感器,半导体MQ-7一氧化碳传感器和MQ-138甲醛传感器以及数字型DHT11温湿度传感器作为数据采集模块。设计了一种室内空气质量测量装置,完成了该装置的硬件电路和软件部分设计,经测试表明：系统的相对误差小于2%,具有精度高、性能稳定、反应迅速、性价比高、便携方便等优点,而且结构简单、使用简洁方便,可广泛应用于室内环境的检测。
Since 80-90 percent of one＇s lifetime is spent indoor in average,people＇s health is affected by air quality indoor directly.As a result,the study of indoor air quality parameters monitor has a vital practical significance.The system is based on STC12C5A60S2 control core and electrochemical effect 4OXV oxygen sensor,using semiconductor MQ-7carbon monoxide sensor and MQ-138 formaldehyde sensor and digital DHT11 temperature and humidity sensor as data acquisition module.Design an indoor air quality monitor device,completed the hardware circuit and software design of the device.The test results show that：the relative error of the system is less than 2%,which has the advantages of high precision,stable performance,quick response high ratio of performance to price,portable and convenient,and has the advantages of simple structure.The use of simple and convenient,and can be widely applied to indoor environmental testing.
出处
《国外电子测量技术》
2015年第1期52-55,共4页
Foreign Electronic Measurement Technology
