Reducing the flow measurement error caused by pulsations in flows

Reducing the flow measurement error caused by pulsations in flows

Different types of errors are generated by pulsations in flows. Among these errors is the sampling error due to a unadapted time-averaging of the flow rate. An improved model for pulsations in flows including harmonics is derived. The localization of the harmonics is performed by a detector. The per...

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Veröffentlicht in:Flow measurement and instrumentation 2004-10, Vol.15 (5), p.311-315
Hauptverfasser: Berrebi, J., van Deventer, J., Delsing, J.
Format: Artikel
Sprache:eng
Schlagworte:
Error
Flow pulsations
Flowmeter
Harmogram
Industrial Electronics
Industriell elektronik
Sampling
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Zusammenfassung:Different types of errors are generated by pulsations in flows. Among these errors is the sampling error due to a unadapted time-averaging of the flow rate. An improved model for pulsations in flows including harmonics is derived. The localization of the harmonics is performed by a detector. The period of the pulsations is estimated. It is then possible to reduce the sampling error by performing a correct averaging. The reduction of the sampling error is confirmed by simulations.
ISSN:0955-5986
1873-6998
1873-6998
DOI:10.1016/j.flowmeasinst.2004.05.001