Microflow valve control system design

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Abstract

A design synthesis for a microflow control system is presented based on the interrogation of an analytical model, testing, and observation. The key issues relating to controlling a microflow using a variable geometry flow channel are explored through the implementation and testing of open and closed-loop control systems. The reliance of closed-loop systems on accurate flow measurement and the need for an open-loop strategy are covered. A valve and control system capable of accurately controlling flowrates between 0.09 and 400 ml/h and with a range of 900:1 is demonstrated.
Original languageEnglish
Pages (from-to)431-442
Number of pages12
JournalProceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering
Volume225
Issue number3
DOIs
Publication statusPublished - May 2011

Keywords

  • system modelling
  • microflow flow control
  • control synthesis
  • valve design

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