摘要
该文介绍了一种通过检测电位器的分压来检测阀门的开度的方法,并详细介绍了由运算放大器LM358、AD转换器TLC1549、单片机AT89C2051、液晶显示器TC802A和RS485通讯芯片75LBC184组成的阀门开度智能检测显示表的工作原理、硬件结构和工作过程。该表结构简单、数据准确。
This paper introduces a new method for detecting the opening of valve by detecting the voltage of the potentiometer. This intelligent meter is made up of operational amplifier LM358, AD converter TLC1549, SCM（single-chip microcomputer） AT89C2051, LCD TC802A and RS485 communication chip 75LBC184. This paper introduces the principle, construction and operation process of the intelligent meter. The construction of this meter is simple and the data is accurate.
出处
《仪器仪表用户》
2005年第6期49-50,共2页
Instrumentation
关键词
阀门开度
智能检测
单片机
AD转换
Opening of valve, Intelligent detecting, SCM, AD convert
