摘要
介绍的显示存储仪以AT89C52微处理器为核心,外加时钟芯片。系统能够实现自动测量,把变送器输出的标准信号4-20mA(或1-5V)转变为实测值并通过LED显示,同时将测量值与测量时间送入RAM中进行存储,也可通过串口发送给上位机。
This paper introduces a new display memory instrument, in which AT89C52 micro-processor is the core, with a time chip added to it. This system can automatically make measurements. Standard signal output by data source can be transferred to actual value, then displayed by LED. Meanwhile, the measured value and time can be stored in RAM and they can be to superordinate computer by serial communicative interface.
出处
《陕西工学院学报》
2002年第4期9-10,14,共3页
Journal of Shaanxi Institute of Technology
关键词
智能
显示
存储
接口
industrial engineering
total quality management
value engineering
cost
