ANALYSIS OF SIGNALS FROM VORTEX FLOWMETERS

被引：25

作者：

AMADIECHENDU, JE

ZHU, HJ

HIGHAM, EH

机构：

[1] School of Engineering, University of Greenwich, Woolwich, London

[2] School of Engineering, University of Sussex, Falmer, Brighton

来源：

FLOW MEASUREMENT AND INSTRUMENTATION | 1993年 / 4卷 / 04期

关键词：

VORTEX FLOWMETERS; SIGNAL PROCESSING; CONDITION MONITORING;

D O I：

10.1016/0955-5986(93)90029-I

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The vortex flowmeter is used to measure the flow of fluids especially where the requirements include wide rangeability and the use of flowmeters with no moving parts. It is common knowledge that process conditions affect the operation of a vortex flowmeter, and a customary approach is to introduce flow conditioners so that the measurement output from a vortex flowmeter conforms to specified standards. Some recent studies have shown how to apply signal analysis to the signal from vortex flowmeters to enhance performance, but the signal which has been typically analysed is the pulse train. In this paper, we advocate a new approach which involves detailed analysis of the unconditioned signal from the sensor prior to conventional signal conditioning. The results obtained from this approach open opportunities for the development of alternative signal conditioners and transmitters which not only enhance the quality of the measurement output from a vortex flowmeter but also make it possible to use the flowmeter for monitoring the condition of the plant.

引用

页码：225 / 231

页数：7

共 6 条

[1]

Coulthard, A comparison of vortex frequency counting and vortex wake transit time measurements as a means of flow metering, Category 2a Research Project Proposal to FLOMIC, (1991)

[2]

Mottram, Rawat, Instillation effects on vortex flowmeters, Meas. Control, 21, (1988)

[3]

Mattingly, Yeh, Flowmeter installation effects: A new approach to an old but prevalent problem, Proceedings of International Conference on Flow Measurement in the Mid 80's, (1986)

[4]

Ihalainen, Halttunen, Vortex signal analysis, Proceedings of ACTA IMEKO, (1982)

[5]

Fell, Pulse Signal Analysis — Opportunities for Flowmeter Enhancement, (1988)

[6]

Amadi-Echendu, Zhu, Signal analysis applied to vortex flowmeters, IEEE Trans. Instrum. Meas., 41, 6, (1992)

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