计量学报2026，Vol.47Issue(2)：192-199,8.DOI:10.3969/j.issn.1000-1158.2026.02.05
基于多通道并行滤波的涡街流量计信号处理方法
Signal Processing Method for Vortex Flowmeters Based on Multi-channel Parallel Algorithms
陈洁 1万书绪 1李斌1
作者信息
- 1. 上海大学 机电工程与自动化学院,上海 200444
- 折叠
摘要
Abstract
The vortex flowmeter holds a significant position in the field of flow measurement due to its advantages such as having no mechanical moving parts,adaptability to various media,and low pressure loss.The vortex signal detected by the piezoelectric element undergoes a series of amplifications,filtering,and other processing through analog and digital circuits to obtain precise flow values.To enhance the dynamic response performance of the vortex flowmeter,a multi-channel parallel signal processing method with a 1/f 2 amplitude-frequency characteristic modulation is designed.By employing filtering units with a 1/f 2 attenuation(-40 dB/dec)characteristic and extending the turndown ratio based on the physical relationship of the amplitude-frequency characteristics of vortex signals,the measurement channels are divided into several parallel channels,and a rapid channel selection method is designed.This effectively addresses the issue of slow dynamic response in vortex flowmeter signal processing methods.The results show that a vortex flowmeter integrated with a four-channel algorithm achieves 0.5-grade accuracy and outperforms Yokogawa flowmeters in terms of dynamic response performance.关键词
流量计量/涡街流量计/多通道信号/并行处理/动态响应Key words
flow measurement/vortex flowmeter/multi-channel signal/parallel processing/dynamic response分类
通用工业技术引用本文复制引用
陈洁,万书绪,李斌..基于多通道并行滤波的涡街流量计信号处理方法[J].计量学报,2026,47(2):192-199,8.
