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A non-invasive capacitive sensor strip for aerodynamic pressure measurement

A non-invasive capacitive sensor strip for aerodynamic pressure measurement
A non-invasive capacitive sensor strip for aerodynamic pressure measurement
This paper presents a capacitive pressure sensor strip implemented in general purpose printed circuit board (PCB) technology based on a thin 3D structure composed of polyimide, woven glass reinforced epoxy resin (FR4) and metal layers. Multiphysics finite elements method (FEM) simulations have been performed over the proposed structure in order to develop a time-dependent electrical and mechanical model that can be easily used to tailor the characteristics to the application. The device targets a wide class of fluid dynamics applications, being non-invasive, comformable and smart for placement. The device simulations are herein validated by experimental wind tunnel measurements and compared with figures obtained on a wing profile by conventional electromechanical pressure transducers. This approach is one of the first example of fully embedding and electronically controlled fluid flow monitoring apparatus that could be used in replacement of state of the art mechanical systems.
0924-4247
240-248
Zagnoni, M.
c719a8d2-cd85-4d22-a669-eb0557b3aa95
Golfarelli, A.
91a77beb-cfb6-4d80-9326-859e54e8c1a9
Callegari, S.
9177fe57-51b6-4394-8f5f-229433124b79
Talamelli, A.
e500644c-4a0c-44e4-8563-409f9a6a4fef
Bonora, V.
901235d8-23f9-43be-b1a4-469d8fa7b934
Sangiorgi, E.
aaa89453-63a5-4fe8-aa68-c96a19db27ca
Tartagni, M.
dfdda9ee-a432-4a57-bde4-e538b963600f
Zagnoni, M.
c719a8d2-cd85-4d22-a669-eb0557b3aa95
Golfarelli, A.
91a77beb-cfb6-4d80-9326-859e54e8c1a9
Callegari, S.
9177fe57-51b6-4394-8f5f-229433124b79
Talamelli, A.
e500644c-4a0c-44e4-8563-409f9a6a4fef
Bonora, V.
901235d8-23f9-43be-b1a4-469d8fa7b934
Sangiorgi, E.
aaa89453-63a5-4fe8-aa68-c96a19db27ca
Tartagni, M.
dfdda9ee-a432-4a57-bde4-e538b963600f

Zagnoni, M., Golfarelli, A., Callegari, S., Talamelli, A., Bonora, V., Sangiorgi, E. and Tartagni, M. (2005) A non-invasive capacitive sensor strip for aerodynamic pressure measurement. Sensors and Actuators A: Physical, 123-12, 240-248. (doi:10.1016/j.sna.2005.03.049).

Record type: Article

Abstract

This paper presents a capacitive pressure sensor strip implemented in general purpose printed circuit board (PCB) technology based on a thin 3D structure composed of polyimide, woven glass reinforced epoxy resin (FR4) and metal layers. Multiphysics finite elements method (FEM) simulations have been performed over the proposed structure in order to develop a time-dependent electrical and mechanical model that can be easily used to tailor the characteristics to the application. The device targets a wide class of fluid dynamics applications, being non-invasive, comformable and smart for placement. The device simulations are herein validated by experimental wind tunnel measurements and compared with figures obtained on a wing profile by conventional electromechanical pressure transducers. This approach is one of the first example of fully embedding and electronically controlled fluid flow monitoring apparatus that could be used in replacement of state of the art mechanical systems.

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Published date: 23 September 2005
Organisations: Nanoelectronics and Nanotechnology

Identifiers

Local EPrints ID: 264503
URI: https://eprints.soton.ac.uk/id/eprint/264503
ISSN: 0924-4247
PURE UUID: 54eb231d-cc12-4220-8fd2-d1d7275e68d3

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Date deposited: 14 Sep 2007
Last modified: 11 Nov 2019 21:07

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