Mechanical analysis of MEMS diaphragm for bladder pressure monitoring

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_version_ 1860799643438284800
building INTELEK Repository
collection Online Access
collectionurl https://intelek.unisza.edu.my/intelek/pages/search.php?search=!collection407072
date 2018-01-21 08:22:23
eventvenue Golden Sands Resort Penang Shangri La Batu Feringgi BeachBatu
format Restricted Document
id 6816
institution UniSZA
originalfilename 1151-01-FH03-FRIT-18-12572.jpg
person norman
recordtype oai_dc
resourceurl https://intelek.unisza.edu.my/intelek/pages/view.php?ref=6816
spelling 6816 https://intelek.unisza.edu.my/intelek/pages/view.php?ref=6816 https://intelek.unisza.edu.my/intelek/pages/search.php?search=!collection407072 Restricted Document Conference Conference Paper image/jpeg inches 96 96 norman 38 38 1439 773 1439x773 2018-01-21 08:22:23 1151-01-FH03-FRIT-18-12572.jpg UniSZA Private Access Mechanical analysis of MEMS diaphragm for bladder pressure monitoring Implantable bladder pressure sensor need to be very sensitive due to its very low pressure range detection. Hence, proper choice of a diaphragm structure is important as it would give an enormous impact on the sensitivity of a MEMS sensor. In this study, finite element (FEA) analysis is conducted to investigate the mechanical characteristics on four various diaphragm structures; clamped, slotted, corrugated and bossed square diaphragm of a capacitive MEMS pressure sensor. The MEMS diaphragm were designed and simulated using Comsol Multiphysics software. The static analysis was conducted in order to investigate the stress distribution, total displacement and capacitance meanwhile the modal analysis was conducted to determine the resonant frequency of each structure. From static analysis, it can be observed that slotted diaphragm has higher sensitivity compared to other structures. However, from modal analysis, it was found that the highest mechanical natural frequency is achieved by clamped diaphragm. From this study, it can be concluded that slotted diaphragm is the most suitable choice for designing the implantable MEMS bladder pressure sensor due to its high sensitivity and meet the requirement of desirable mechanical natural frequency of the sensor. 11th IEEE Regional Symposium on Micro and Nanoelectronics, RSM 2017 Golden Sands Resort Penang Shangri La Batu Feringgi BeachBatu
spellingShingle Mechanical analysis of MEMS diaphragm for bladder pressure monitoring
summary Implantable bladder pressure sensor need to be very sensitive due to its very low pressure range detection. Hence, proper choice of a diaphragm structure is important as it would give an enormous impact on the sensitivity of a MEMS sensor. In this study, finite element (FEA) analysis is conducted to investigate the mechanical characteristics on four various diaphragm structures; clamped, slotted, corrugated and bossed square diaphragm of a capacitive MEMS pressure sensor. The MEMS diaphragm were designed and simulated using Comsol Multiphysics software. The static analysis was conducted in order to investigate the stress distribution, total displacement and capacitance meanwhile the modal analysis was conducted to determine the resonant frequency of each structure. From static analysis, it can be observed that slotted diaphragm has higher sensitivity compared to other structures. However, from modal analysis, it was found that the highest mechanical natural frequency is achieved by clamped diaphragm. From this study, it can be concluded that slotted diaphragm is the most suitable choice for designing the implantable MEMS bladder pressure sensor due to its high sensitivity and meet the requirement of desirable mechanical natural frequency of the sensor.
title Mechanical analysis of MEMS diaphragm for bladder pressure monitoring
title_full Mechanical analysis of MEMS diaphragm for bladder pressure monitoring
title_fullStr Mechanical analysis of MEMS diaphragm for bladder pressure monitoring
title_full_unstemmed Mechanical analysis of MEMS diaphragm for bladder pressure monitoring
title_short Mechanical analysis of MEMS diaphragm for bladder pressure monitoring
title_sort mechanical analysis of mems diaphragm for bladder pressure monitoring