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A self-validating differential-pressure flow sensor

  • J. Q. Zhang*
  • , Y. Yan
  • *Corresponding author for this work
  • University of Greenwich

Research output: Contribution to conferencePaperpeer-review

Abstract

The blockage of the sensing lines of a differential-pressure (DP) flow sensor has been found to be the main cause of malfunction of a flow measurement system in many industrial processes. A novel method based upon wavelet transforms for the self-validation of the DP flow sensor is presented in this paper. Unlike a conventional DP flow sensor that provides only measurements, a self-validating version of the sensor developed enables its measurements to be accompanied by a validity index. Namely, the accuracy of the measurement is reflected by the validating uncertainty whilst the normality of the measurement is indicated by normal/abnormal sensor operating status. Experimental results of a designed prototype sensor have verified the effectiveness of the approach.

Original languageEnglish
Pages1227-1230
Number of pages4
StatePublished - 2001
Externally publishedYes
Event18th IEEE Instrumentation and Measurement of Informatics -Rediscovering Measurement in the Age of Informatics - Budapest, Hungary
Duration: 21 May 200123 May 2001

Conference

Conference18th IEEE Instrumentation and Measurement of Informatics -Rediscovering Measurement in the Age of Informatics
Country/TerritoryHungary
CityBudapest
Period21/05/0123/05/01

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