kth.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Development of Reliability Test Rigs for Total Artificial Heart Pumps
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Biomedical Engineering and Health Systems.
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Biomedical Engineering and Health Systems.
2022 (English)Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesisAlternative title
Utveckling av reliabilitets-testanordningar för totalt artificiella hjärtpumpar (Swedish)
Abstract [en]

The long-term performance of TAH pumps needs to be demonstrated. Reliability tests are performed to measure its ability to operate for months, or years, without failure. Real Heart is currently constructing test rigs for this purpose. Software for documenting test rig conditions is also required. Thus, the objective of this study is to assist in developing reliability test rig software. 

The software is written in LabVIEW and is hosted on a CompactRIO controller. Requirements include sampling of sensor data, logging, and alarms. Additionally, a PC dashboard is constructed for monitoring real-time data, reviewing logs, as well as controls for acquisition.

Results of this study present a foundation for the test rig software. It features a modular architecture which allows for future scalability. The process of development involves research of hardware/software, establishing a reference design and to build and validate each module through test simulations. Data acquisition is set up with the NI-DAQmx API. It features automatic configuration for thermocouple, as well as custom signal scaling of the pressure and flow transducers. However, grouping of data and synchronization for logging and alarms was a challenge. The producer/consumer design pattern is implemented for grouping data as well as synchronization for logging and alarms.

Abstract [sv]

Det artificiella hjärtats långsiktiga prestanda måste demonstreras. Tillförlitlighetstester utförs för att mäta pumparnas förmåga att fungera i månader eller år utan att gå sönder. Real Heart bygger för närvarande testriggar för detta ändamål. Programvara för att dokumentera testriggens förhållanden behövs också. Därför är syftet med denna studie att hjälpa företaget med att utveckla programvara för tillförlitlighetstestriggar. 

Programvaran är skriven i LabVIEW och används på en CompactRIO-kontroller. Den kommer inkludera provtagning av sensordata, loggning och alarm. Dessutom är en PC-instrumentpanel konstruerad för övervakning av realtidsdata, granskning av loggar samt kontroll av datainsamling.

Resultaten av denna studie utgör en grund för testriggens programvara. Den har en modulär arkitektur som möjliggör framtida uppskalning. Utvecklingsprocessen involverar studier av hårdvara/programvara, upprättande av en referensdesign, samt att bygga och validera varje modul genom testsimuleringar. Datainsamling genomförs med NI-DAQmx API. Den har automatisk konfiguration för temperatur, samt anpassad signalskalning av tryck- och flödesgivare. Designmönstret producent/konsument implementerades för gruppering av data, samt synkronisering för loggning och alarm.

Place, publisher, year, edition, pages
2022. , p. 36
Series
TRITA-CBH-GRU ; 2022:081
Keywords [en]
Total Artificial Heart, TAH, Reliability testing, software, labview, CompactRIO
National Category
Medical Laboratory and Measurements Technologies
Identifiers
URN: urn:nbn:se:kth:diva-315448OAI: oai:DiVA.org:kth-315448DiVA, id: diva2:1681542
Subject / course
Medical Engineering; Electrical Engineering
Educational program
Bachelor of Science in Engineering - Engineering and Economics; Bachelor of Science in Engineering - Engineering and Economics
Supervisors
Examiners
Available from: 2022-07-07 Created: 2022-07-06 Last updated: 2022-07-07Bibliographically approved

Open Access in DiVA

Development of Reliability Test Rigs for Total Artificial Heart Pumps(1086 kB)206 downloads
File information
File name FULLTEXT01.pdfFile size 1086 kBChecksum SHA-512
11cfa3897be921b037ba1ecfbda381e759ad643d30833383549dd91be3988cb6f3970682ceb7ded8978d813cfa6b62bf69d590e50e6b299c311961e94b7756c8
Type fulltextMimetype application/pdf

By organisation
Biomedical Engineering and Health Systems
Medical Laboratory and Measurements Technologies

Search outside of DiVA

GoogleGoogle Scholar
Total: 207 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 393 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf