摘要
介绍了以8031单片机为中央处理器的湿度测试仪的工作原理、硬件电路结构和软件设计。该测试仪采用湿敏电容元件与555构成的振荡电路作为信号转换接口,是集温度补偿电路,湿度报警和显示于一体的智能湿度测试系统。它具有明显的测量精度高、智能性强、性能价格比优越的特点,可广泛应用于诸多领域的湿度测量。
A temperature-humidity measuring instrument based on 8031 microcontroller is introduced. The hardware structure and principle of the software design of the instrument are given. A oscillation circuit consisted by humidity sensitive element and 555 time based circuit is used as changeover signal interface, thus this instrument becomes a system with complete function involving measurement, display and humidity warning. The instrument has a good performance, low price and wide use in many other fields.
出处
《农机化研究》
北大核心
2006年第8期98-99,103,共3页
Journal of Agricultural Mechanization Research
基金
淮海工学院自然科学基金资助项目(KX02022)
关键词
农业工程
智能水分测试仪
设计
单片机
电容传感器
在线检测
agricultural engineering
intelligent instrument of humidity measurement
design
single-chip computer
capacitor sensor
online measurement
