Extending measured value of vortex flowmeter at lower velocity by using quadratic cross correlation algorthm

LI Xiao-jing

doi:10.13873/j.1000-97872008.01.004

Chinese

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Extending measured value of vortex flowmeter at lower velocity by using quadratic cross correlation algorthm

更新时间：2025-09-11

- Extending measured value of vortex flowmeter at lower velocity by using quadratic cross correlation algorthm
- Issue 1, Pages: 25-26+29(2008)
- 作者机构：
  
  天津工业大学计算中心,天津,300160
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-97872008.01.004
  CLC： TH814
- Published：2008
- 稿件说明：
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[1]李小京.用二重互相关算法扩展涡街流量计测量下限[J].传感器与微系统,2008(01):25-26+29.

LI Xiao-jing. Extending measured value of vortex flowmeter at lower velocity by using quadratic cross correlation algorthm[J]. 2008, (1): 25-26+29.
[1]李小京.用二重互相关算法扩展涡街流量计测量下限[J].传感器与微系统,2008(01):25-26+29. DOI： 10.13873/j.1000-97872008.01.004.

LI Xiao-jing. Extending measured value of vortex flowmeter at lower velocity by using quadratic cross correlation algorthm[J]. 2008, (1): 25-26+29. DOI： 10.13873/j.1000-97872008.01.004.

摘要

介绍了采用二重互相关算法对强噪声干扰下的涡街信号进行滤波的原理和具体实现方法。对涡街流量计在测量下限时的信号与噪声情况进行了分析

将二次互相关滤波算法引入涡街信号的数字滤波过程中。给出了具体计算方法和各主要参数的取值规则。在实际使用中取得了良好的效果。

Abstract

The filter principle and the implement method of vortex flowmeter signals with serious noises are introduced by using quadratic cross correlation algorithm.The signal and noise conditions of vortex flowmeter at the lower velocity are analyzied

and quadratic cross correlation algorithm is applied to digital filtering.The specific computation method and the rule of choosing a value to several major parameters are given.The good results are achieved in practical application.

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references

相关法高抗干扰超声波距离测量中的信号处理 [J]. 葛万成. 同济大学学报(自然科学版) . 2002(01)

相关流量测量技术[M]. 天津大学出版社 , 徐苓安编著, 1988

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