一种新型涡街流量计信号处理方法的研究  

A New Research on Signal Processing of Vortex Flowmeter

作　　者：王智渊[1] 邹恒超[1] 

机构地区：[1]上海大学机电工程与自动化学院,上海200072

出　　处：《工业控制计算机》2016年第1期61-62,64,共3页Industrial Control Computer

摘　　要：目前高性能的涡街流量计基本被国外产品所垄断,其主要原因是国内涡街流量计信号处理方法与技术上大大落后于国际水平,产品的量程比低。对此设计了一种新型的涡街流量计信号处理方法。对信噪比高的高频涡街信号运用现有的模拟电路处理,在低流速时采用数字滤波器代替,结合整系数滤波的方法,拓宽了整个涡街流量计的量程比,并进行实验验证,具有针对性和可行性。Based on the analysis of signal characteristics,a set of vortex flowmeter signal processing method is proposed in this paper.The traditional signal processing method is adopted while high SNR,accordingly digital filtering was applied instead of the traditional method while relatively low SNR.It is verified on the built test platform that the measurement range is broadened,with high accuracy at the same time, by the design.

关 键 词：涡街流量计 信号处理 数字滤波 

分 类 号：TH814[机械工程—仪器科学与技术]