Analysis of individual cycle deformation in Ni-Mn-Ga Micropumps

A. Armstrong, B. Johnston, P. Lindquist, A. Smith, P. Müllner

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Magnetic shape memory (MSM) alloy micropumps outperform traditional technology through a combination of high pumping precision (below 100 nl per gulp), high controllability and repeatability, high pumping pressure (10 bar), and small size. The pumping method utilizes no moving parts; instead, the material acts as a muscle, replacing valves and mechanical components with a single material that shape changes to move fluid in a peristaltic manner. We present measurement and analysis of the cyclical variability of MSM pump flow as measured with an inline flow sensor. We correlate this flow to the local fluctuations of the MSM surface profile as measured by a laser displacement sensor. These two measurement techniques elucidate the deformation mode the MSM pump experiences during operation, allowing designers of MSM pumps to better accommodate and manipulate material behaviour.

Original languageEnglish
Title of host publicationACTUATOR 2018 - 16th International Conference and Exhibition on New Actuators and Drive Systems, Conference Proceedings
EditorsHubert Borgmann
Pages235-238
Number of pages4
ISBN (Electronic)9783800746750
StatePublished - 2018
Event16th International Conference and Exhibition on New Actuators and Drive Systems, ACTUATOR 2018 - Bremen, Germany
Duration: 25 Jun 201827 Jun 2018

Publication series

NameACTUATOR 2018 - 16th International Conference and Exhibition on New Actuators and Drive Systems, Conference Proceedings

Conference

Conference16th International Conference and Exhibition on New Actuators and Drive Systems, ACTUATOR 2018
Country/TerritoryGermany
CityBremen
Period25/06/1827/06/18

Keywords

  • Heterogenous Magnetic Fields
  • Local Actuation
  • MSM Pump
  • Ni-Mn-Ga

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