DSpace Repository

Primary Measuring Transducer of a Diagnostic Spirometer Based on a Venturi Flowmeter

Show simple item record

dc.contributor.author TOMASHEVSKYI, Roman
dc.contributor.author VASILCHUK, Dmitry
dc.date.accessioned 2023-11-13T10:41:12Z
dc.date.available 2023-11-13T10:41:12Z
dc.date.issued 2023
dc.identifier.citation TOMASHEVSKYI, Roman, VASILCHUK, Dmitry. Primary Measuring Transducer of a Diagnostic Spirometer Based on a Venturi Flowmeter. In: 6th International Conference on Nanotechnologies and Biomedical Engineering: proc. of ICNBME-2023, 20–23, 2023, Chisinau, vol. 2: Biomedical Engineering and New Technologies for Diagnosis, Treatment, and Rehabilitation, 2023, p. 93-102. ISBN 978-3-031-42781-7. e-ISBN 978-3-031-42782-4. en_US
dc.identifier.isbn 978-3-031-42781-7
dc.identifier.isbn 978-3-031-42782-4
dc.identifier.uri https://doi.org/10.1007/978-3-031-42782-4_11
dc.identifier.uri http://repository.utm.md/handle/5014/24773
dc.description Acces full text - https://doi.org/10.1007/978-3-031-42782-4_11 en_US
dc.description.abstract The presented work is devoted to the development of a primary measuring transducer implemented on the basis of Venturi flowmeter for a portable spirometer. A modified Venturi flowmeter design has been proposed to enable measurement of two phases of the respiratory cycle (expiratory and aspiratory). This modification differs from the classical version in that it has a symmetrical shape relative to the median plane, which is perpendicular to the tube axis at the throat section. It has been shown in the paper that the curves showing dependence of pressure drop ∆p on inlet flow Q, for classical and modified Venturi flowmeter have good convergence. In order to develop a mathematical model of the proposed Venturi flowmeter design, basic hydrodynamic equations, such as Bernoulli equation and continuity of flowequation, have been used and calculation methodology of Venturi nozzle for rhinomanometry problems has been applied. Using the calculation results, a 3D model of the Venturi flowmeter was created in SolidWorks CAD, followed by static and dynamic studies. Based on the simulation results, the pressure distribution graphs along the Venturi flowmeter inner surface at maximum Q = 16 l/s and minimum Q = 0, 1 l/s inlet flow rates have been obtained. These graphs made it possible to determine theminimum andmaximum pressure drop at the installation points of the differential pressure sensor (secondary transmitter) and to establish the pressure variation range in which the sensor should measure. The error of the simulation and calculation results was assessed and showed good convergence in the input flow range Q = 0, 1 ÷ 8 l/s. Further research will focus on developing a secondary transducer and integrating it with the primary transducer to create an air volume velocity transducer with improved metrological characteristics. en_US
dc.language.iso en en_US
dc.publisher Springer Nature Switzerland en_US
dc.rights Attribution-NonCommercial-NoDerivs 3.0 United States *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/us/ *
dc.subject diagnostic spirometers en_US
dc.subject differential pressure sensors en_US
dc.subject spirometers en_US
dc.subject spirometry en_US
dc.subject Venturi tubes en_US
dc.title Primary Measuring Transducer of a Diagnostic Spirometer Based on a Venturi Flowmeter en_US
dc.type Article en_US


Files in this item

The following license files are associated with this item:

This item appears in the following Collection(s)

  • 2023
    6th International Conference on Nanotechnologies and Biomedical Engineering, September 20–23, 2023, Chisinau, Moldova

Show simple item record

Attribution-NonCommercial-NoDerivs 3.0 United States Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 United States

Search DSpace


Advanced Search

Browse

My Account