Geometrical Optimisation of Diode-Based Calorimetric Thermal Flow Sensors through Multiphysics Finite Element Modelling
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Publication Date
2017-08-11Journal Title
Proceedings of Eurosensors 2017, Paris, France, 3–6 September 2017
Conference Name
Eurosensors
ISSN
2504-3900
Publisher
MDPI
Volume
1
Issue
4
Pages
280-280
Language
en
Type
Conference Object
This Version
VoR
Metadata
Show full item recordCitation
Gardner, E. L., Luca, A. D., Falco, C., & Udrea, F. (2017). Geometrical Optimisation of Diode-Based Calorimetric Thermal Flow Sensors through Multiphysics Finite Element Modelling. Proceedings of Eurosensors 2017, Paris, France, 3–6 September 2017, 1 (4), 280-280. https://doi.org/10.3390/proceedings1040280
Abstract
For the first time, 3D multiphysics finite element modelling has been used to optimise the geometry of a calorimetric thermal flow sensor. The model involves and couples three physics domains: electric, thermal and fluid mechanics. The model is validated against experimental data obtained from a thermoelectronic flow sensor comprising of a tungsten heating resistor and temperature sensing diodes. Upstream and downstream diodes measure the temperature change caused by the asymmetric thermal profile when gas flow is introduced. The optimum distance between the diodes and the heater is shown along with the advantages of altering heater and membrane geometries, providing the knowledge for application-driven sensor optimisation.
Identifiers
External DOI: https://doi.org/10.3390/proceedings1040280
This record's URL: https://www.repository.cam.ac.uk/handle/1810/286836
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