Modelling and analysis of SU8/CB nanocomposite polymer flow sensor

This paper studies the effect of diaphragm size and stylus design on flow measurement characteristics of a polymer flow sensor. The sensor is made of two piezoresistive SU8/CB nanocomposite polymer cantilevers integrated with diaphragm carrying a free standing stylus its centre. The fluid flow drag...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2019-10, Vol.561 (1), p.12108
Main Authors: Suraj, Ansari, Mohd. Zahid
Format: Article
Language:English
Subjects:
Computational fluid dynamics
Deflection
Drag
Finite element method
Flow measurement
Fluid flow
Nanocomposites
Polymers
Sensitivity
Sensors
Styli
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Summary:This paper studies the effect of diaphragm size and stylus design on flow measurement characteristics of a polymer flow sensor. The sensor is made of two piezoresistive SU8/CB nanocomposite polymer cantilevers integrated with diaphragm carrying a free standing stylus its centre. The fluid flow drag force deflects the stylus which in turn deforms the anchoring cantilevers and changes their electrical resistivity. Finite element analysis software ANSYS Multiphysics used to determine the deflection, stress and sensitivity characteristics of the flow sensor at different velocities. Results show that sensitivity of flow sensor decreases with increase in diaphragm size and square stylus has better sensitivity.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/561/1/012108