摘要
一种涡轮流量计的输出的脉冲频率可达10Hz,现有的一种智能流量积算仪可接收的最大脉冲频率仅为4Hz,存在着频率匹配的问题。现需设计一个频率转换装置,以实现二者的频率匹配。文中提出了一种基于AT89S51单片机实现的设计方案,较详细的介绍了该方案的实现过程,实现原理,给出了该方案的电路原理图和由C51实现的部分程序源代码。所述方案已在福建某一液化天然气项目中得到实际应用,取得了比较好的效果。
The output pulse frequency of a Turbine Flowmeter can be up to 10kHz,while the Intelligent Flow Totalizer presented receives a maximum pulse frequency of merely 4Hz,causing a problem on frequency matching.Thus,a frequency converter should be designed to match the two frequencies.A scheme based on AT89S51 is proposed in this paper,analyzing the implementation principle and process in detail.The circuit schematic diagram and part of the source code based on C51 are also included.This program has already obtained practical application in a liquefied natural gas project in Fujian province,and has achieved a good result.
出处
《机电工程技术》
2009年第9期70-71,92,共3页
Mechanical & Electrical Engineering Technology
