A Linear Permanent Magnet Synchronous Motor for Large Volume Needle-free Jet Injection

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dc.contributor.author Do, NNL en
dc.contributor.author Taberner, Andrew en
dc.contributor.author Ruddy, Bryan en
dc.date.accessioned 2019-06-18T22:22:08Z en
dc.date.issued 2018 en
dc.identifier.citation IEEE Transactions on Industry Applications 55(2):1-1 2018 en
dc.identifier.issn 1939-9367 en
dc.identifier.uri http://hdl.handle.net/2292/47144 en
dc.description.abstract Needle-free jet injection allows delivery of liquid drugs through the skin in the form of a narrow fluid jet traveling at high speed, minimizing the risk of accidents. The use of a controllable actuator to drive this process has many advantages, but the voice coil actuators previously used are too large and heavy for practical use with common injection volumes (1 mL). We instead propose a compact slotless tubular linear permanent magnet synchronous motor design for jet injection. The design was determined by utilizing a semi-analytical electromagnetic modeling technique to predict the performance of any given motor design, an optimization scheme for the motor mass at a given power dissipation, and an automated routine for estimating cogging force using finite-element analysis. A prototype motor was constructed, with a nominal mass of 322 g, a stroke of 80 mm, and a target operating power of 1.2 kW; experimental data show that the motor constant is within 10% of the target, and that the cogging force is in close agreement with the model. Test ejection of water into a force sensor verified that the motor is fit for needle-free injection. The design methodology explained here shows the benefits to integrated design optimization of both the actuator and the load, particularly in systems that drive fluid pressure loads, and also opens the door to controllable injector designs for larger volumes. en
dc.publisher Institute of Electrical and Electronics Engineers en
dc.relation.ispartofseries IEEE Transactions on Industry Applications en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.rights.uri https://www.ieee.org/publications/rights/author-posting-policy.html en
dc.title A Linear Permanent Magnet Synchronous Motor for Large Volume Needle-free Jet Injection en
dc.type Journal Article en
dc.identifier.doi 10.1109/TIA.2018.2880417 en
pubs.issue 2 en
pubs.begin-page 1 en
pubs.volume 55 en
dc.rights.holder Copyright: IEEE en
pubs.end-page 1 en
dc.rights.accessrights http://purl.org/eprint/accessRights/OpenAccess en
pubs.subtype Article en
pubs.elements-id 756105 en
pubs.org-id Bioengineering Institute en
pubs.org-id ABI Associates en
pubs.org-id Engineering en
pubs.org-id Engineering Science en
pubs.record-created-at-source-date 2018-11-12 en
pubs.online-publication-date 2018-11-09 en

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