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https://hdl.handle.net/1822/60927
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Campo DC | Valor | Idioma |
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dc.contributor.author | Sanches De Baêna, M. | por |
dc.contributor.author | Minas, Graça | por |
dc.contributor.author | Catarino, Susana Oliveira | por |
dc.date.accessioned | 2019-07-18T14:29:13Z | - |
dc.date.issued | 2019-04-15 | - |
dc.identifier.citation | de Baêna, M. S., Minas, G., & Catarino, S. O. (2019, February). PVDF piezoelectric flow sensor for velocity measurements aiming malaria diagnostics: a preliminary approach. In 2019 IEEE 6th Portuguese Meeting on Bioengineering (ENBENG) (pp. 1-4). IEEE. | por |
dc.identifier.isbn | 978-1-5386-8507-5 | por |
dc.identifier.uri | https://hdl.handle.net/1822/60927 | - |
dc.description.abstract | Malaria is a parasitic disease widely spread in the tropical and subtropical regions of the globe, commonly associated with underdeveloped countries with poor healthcare conditions. Appropriate diagnosis and treatment are essential for reducing malaria mortality. The measurement of the blood velocity in capillary vessels can be used as a principle for malaria diagnostics. Therefore, this work focuses on developing the actuation, acquisition and readout electronics systems of a piezoelectric acoustic transducer for measuring the velocity of a liquid, aiming malaria diagnostics. The measurement is based on the phase differences between the emitted and the received acoustic signals that interact with the fluid, driven by a voltage-controlled oscillator that generates an 8.5 MHz acoustic wave. The material of the piezoelectric transducer is based on the polyvinylidene fluoride (PVDF) polymer placed in a water chamber. The system was tested in water with different flow conditions, from rest up to 30 ml/min. It was compared the effect of two different thin-film PVDF transducers, with 28 and 110 μm thickness, and it was observed that both allowed to detected flows above 5 ml/min, with 84% and 77% linearity, respectively. Therefore, the developed prototype system of the acoustic transducer for measuring the velocity of a liquid sample may be reliable, since it detects velocity variations within the typical range of blood flow velocities in capillary vessels. Future work is essential to improve the sensor overall characteristics to make it a reliable tool for malaria diagnostics. | por |
dc.description.sponsorship | Research supported by project NORTE-01-0145-FEDER-028178, supported by Norte Portugal Regional Operational Programme (NORTE 2020), under the PORTUGAL 2020 Partnership Agreement, through the European Regional Development Fund (ERDF) and by Fundação para a Ciência e Tecnologia (FCT), IP. | por |
dc.language.iso | eng | por |
dc.publisher | Institute of Electrical and Electronics Engineers Inc. | por |
dc.rights | restrictedAccess | por |
dc.title | PVDF piezoelectric flow sensor for velocity measurements aiming malaria diagnostics: A preliminary approach | por |
dc.type | conferencePaper | por |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | https://ieeexplore.ieee.org/document/8692515 | por |
oaire.citationConferenceDate | 22 Fev. - 23 Fev. 2019 | por |
sdum.event.title | 2019 IEEE 6th Portuguese Meeting on Bioengineering (ENBENG) | por |
sdum.event.type | meeting | por |
oaire.citationConferencePlace | Lisboa, Portugal | por |
dc.date.updated | 2019-07-18T14:02:21Z | - |
dc.identifier.doi | 10.1109/ENBENG.2019.8692515 | por |
dc.date.embargo | 10000-01-01 | - |
dc.identifier.eisbn | 978-1-5386-8506-8 | por |
dc.subject.fos | Ciências Médicas::Biotecnologia Médica | por |
dc.subject.fos | Engenharia e Tecnologia::Engenharia Médica | por |
dc.subject.wos | Science & Technology | por |
sdum.export.identifier | 5391 | - |
sdum.conferencePublication | 6th IEEE Portuguese Meeting on Bioengineering, ENBENG 2019 - Proceedings | por |
sdum.bookTitle | 2019 6TH IEEE PORTUGUESE MEETING IN BIOENGINEERING (ENBENG) | por |
Aparece nas coleções: | CMEMS - Artigos em livros de atas/Papers in proceedings DEI - Artigos em atas de congressos internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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08692515 - published.pdf Acesso restrito! | 3,1 MB | Adobe PDF | Ver/Abrir |