Arduino control of a pulsatile flow rig

S. Drost, B. J. de Kruif, D. Newport

Research output: Contribution to journalArticlepeer-review

Abstract

This note describes the design and testing of a programmable pulsatile flow pump using an Arduino micro-controller. The goal of this work is to build a compact and affordable system that can relatively easily be programmed to generate physiological waveforms. The system described here was designed to be used in an in-vitro set-up for vascular access hemodynamics research, and hence incorporates a gear pump that delivers a mean flow of 900 ml/min in a test flow loop, and a peak flow of 1106 ml/min. After a number of simple identification experiments to assess the dynamic behaviour of the system, a feed-forward control routine was implemented. The resulting system was shown to be able to produce the targeted representative waveform with less than 3.6% error. Finally, we outline how to further increase the accuracy of the system, and how to adapt it to specific user needs.

Original languageEnglish
Pages (from-to)67-71
Number of pages5
JournalMedical Engineering and Physics
Volume51
DOIs
Publication statusPublished - Jan 2018

Keywords

  • Arduino
  • Feed forward control
  • Hemodynamics
  • In-vitro
  • Pulsatile flow pump

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