一种脉冲式涡街流量计计数检测方法  

A Counting and Detection Method for Pulsed Vortex Flowmeter

作　　者：王强 林涛 石栋良 

机构地区：[1]上海五零盛同信息科技有限公司,上海200063

出　　处：《化工自动化及仪表》2013年第5期590-591,673,共3页Control and Instruments in Chemical Industry

摘　　要：介绍了一种全新的脉冲式涡街流量计计数检测方法,以ARM为核心,软、硬件二次滤波后计量脉冲数量。同时对脉冲幅值、脉冲周期及脉冲输入规律等进行综合对比,判断脉冲输入的状态是否正常,从而确保脉冲计量准确。A new counting and detection method for pulsed vortex flowmeter was presented,which takes ARM as the core,and counts the pulse numbers after having them filtered with software and hardware,and meanwhile,has the pulse amplitude,pulse cycle and pulse input patterns compared comprehensively so as to determine the input state and to ensure pulse measurement accuracy.

关 键 词：脉冲式涡街流量计 硬件滤波 软件滤波 脉冲计数 脉冲检测 

分 类 号：TH814[机械工程—仪器科学与技术]