摘要
介绍一种以PIC18F452单片机为核心的智能流量计。通过测量来自涡街的信号频率,计算得到流体的瞬时流量和累积量,并进行显示。流量计具有CAN通信接口,多个流量计可以组成CAN通信网络,实现对流量的多点监测。文中详细阐述了流量计的工作原理,给出了硬件原理图及软件流程图。
A design of intelligent flowmeter,with PIC18F452 as its core,is proposed.Instant flow and integrated flow are calculated according the frequency of vortex signal.They are displayed on LCD.The flowmeter has a CAN interface.Several flowmeters can make up a CAN network for the purpose of multiple-point flow rate monitoring.The principle of flowmeter,circuit schematics and software flow charts are introduced.
出处
《仪表技术》
2011年第1期28-31,共4页
Instrumentation Technology
