Robust microfluidic flow sensor with a biologically inspired cupula structure for flow rate measurement

<p>This research is about the development of robust microfluidic flow sensor with a</p><p>biologically-inspired cupula structure for flow rate measurement. The proposed flow</p><p>sensor consists of a dome-shaped structure, microc...

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Main Author: Nur Shahira Shahripul Azeman
Format: thesis
Language:eng
Published: 2022
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Online Access:https://ir.upsi.edu.my/detailsg.php?det=9705
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institution Universiti Pendidikan Sultan Idris
collection UPSI Digital Repository
language eng
topic Q Science (General)
spellingShingle Q Science (General)
Nur Shahira Shahripul Azeman
Robust microfluidic flow sensor with a biologically inspired cupula structure for flow rate measurement
description <p>This research is about the development of robust microfluidic flow sensor with a</p><p>biologically-inspired cupula structure for flow rate measurement. The proposed flow</p><p>sensor consists of a dome-shaped structure, microchannel and coplanar electrode.</p><p>Mechanical analysis of the dome-shaped membrane is carried out by using finite</p><p>element analysis in terms of deflection and Misses Stress. The simulations using</p><p>Ansys software were carried out for both Computational Fluid Dynamic (CFD) and</p><p>Finite Element Analysis (FEA). A sensor with a 3.2 mm radius of dome and 0.5 mm</p><p>in dome thickness had been selected from the simulation due to its flexibility. The</p><p>mold of the flow sensor was designed by using Solidwork 2016 and fabricated using</p><p>soft lithography process including casting and molding process in</p><p>Polydimethysiloxane (PDMS) structure fabrication. The electrode was fabricated by</p><p>using Printed Circuit Board (PCB) process. It was design by using EAGLE software.</p><p>There were a few processes that involved in PCB process which were printing</p><p>process, exposure process, developer process and etching process. Last process is a</p><p>sealing process, where both fabricated PDMS structure and electrode were seal and</p><p>carefully aligned. Polydimethylsiloxane (PDMS) is used as a membrane due to its</p><p>high elasticity compared to other polymers. Propylene carbonate (PC) electrolyte is</p><p>used for its high dielectric constant that gives good performance in terms of its high</p><p>boiling point which improves the longevity of the liquid inside the microchannel.</p><p>Based on the experimental results, the operating frequency and the flow rate of the</p><p>flow sensor were ideally observed at 4.4 kHz and between 0 to 0.17 UM/s The</p><p>effects of temperature and pressure were recorded and discussed in this research.</p>
format thesis
qualification_name
qualification_level Master's degree
author Nur Shahira Shahripul Azeman
author_facet Nur Shahira Shahripul Azeman
author_sort Nur Shahira Shahripul Azeman
title Robust microfluidic flow sensor with a biologically inspired cupula structure for flow rate measurement
title_short Robust microfluidic flow sensor with a biologically inspired cupula structure for flow rate measurement
title_full Robust microfluidic flow sensor with a biologically inspired cupula structure for flow rate measurement
title_fullStr Robust microfluidic flow sensor with a biologically inspired cupula structure for flow rate measurement
title_full_unstemmed Robust microfluidic flow sensor with a biologically inspired cupula structure for flow rate measurement
title_sort robust microfluidic flow sensor with a biologically inspired cupula structure for flow rate measurement
granting_institution Universiti Pendidikan Sultan Idris
granting_department Fakulti Sains dan Matematik
publishDate 2022
url https://ir.upsi.edu.my/detailsg.php?det=9705
_version_ 1783730295126622208
spelling oai:ir.upsi.edu.my:97052023-11-17 Robust microfluidic flow sensor with a biologically inspired cupula structure for flow rate measurement 2022 Nur Shahira Shahripul Azeman Q Science (General) <p>This research is about the development of robust microfluidic flow sensor with a</p><p>biologically-inspired cupula structure for flow rate measurement. The proposed flow</p><p>sensor consists of a dome-shaped structure, microchannel and coplanar electrode.</p><p>Mechanical analysis of the dome-shaped membrane is carried out by using finite</p><p>element analysis in terms of deflection and Misses Stress. The simulations using</p><p>Ansys software were carried out for both Computational Fluid Dynamic (CFD) and</p><p>Finite Element Analysis (FEA). A sensor with a 3.2 mm radius of dome and 0.5 mm</p><p>in dome thickness had been selected from the simulation due to its flexibility. The</p><p>mold of the flow sensor was designed by using Solidwork 2016 and fabricated using</p><p>soft lithography process including casting and molding process in</p><p>Polydimethysiloxane (PDMS) structure fabrication. The electrode was fabricated by</p><p>using Printed Circuit Board (PCB) process. It was design by using EAGLE software.</p><p>There were a few processes that involved in PCB process which were printing</p><p>process, exposure process, developer process and etching process. Last process is a</p><p>sealing process, where both fabricated PDMS structure and electrode were seal and</p><p>carefully aligned. Polydimethylsiloxane (PDMS) is used as a membrane due to its</p><p>high elasticity compared to other polymers. Propylene carbonate (PC) electrolyte is</p><p>used for its high dielectric constant that gives good performance in terms of its high</p><p>boiling point which improves the longevity of the liquid inside the microchannel.</p><p>Based on the experimental results, the operating frequency and the flow rate of the</p><p>flow sensor were ideally observed at 4.4 kHz and between 0 to 0.17 UM/s The</p><p>effects of temperature and pressure were recorded and discussed in this research.</p> 2022 thesis https://ir.upsi.edu.my/detailsg.php?det=9705 https://ir.upsi.edu.my/detailsg.php?det=9705 text eng closedAccess Masters Universiti Pendidikan Sultan Idris Fakulti Sains dan Matematik <p>Abdulsadda A T & Tan X (2012) An artificial lateral line system using IPMC sensor arrays International Journal of Smart and Nano Materials 3(3) 226- 242</p><p>Afsarimanesh N Mukhopadhyay S C & Kruger M (2018) Performance assessment of interdigital sensor for varied coating thicknesses to detect CTX- I IEEE Sensors 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