Modeling of an optical diaphragm for human pulse pressure detection

Hasikin, K. and Soin, N. and Ibrahim, F. (2008) Modeling of an optical diaphragm for human pulse pressure detection. WSEAS Transactions on Electronics, 5 (11). pp. 447-456. ISSN 11099445 (ISSN), DOI

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This paper presents the modeling of an optical diaphragm behavior for human pulse pressure detection. In this study, the comparison between the performance of the polyimide and silicon nitride diaphragm has been presented. The effects of diaphragm radius and diaphragm thickness on static and frequency response are also investigated. The findings show that the polyimide diaphragm is more sensitive than the silicon nitride diaphragm. In addition, deflection of both diaphragms has linear relationship with the applied pressure The diaphragm radius has more effect on the deflection, sensitivity and resonance frequency as compared to the diaphragm thickness. It can be concluded that the polyimide diaphragm achieves the optimum performance in terms of the deflection, sensitivity, and resonance frequency for human pulse pressure detection. Thus, the polyimide diaphragm has been chosen as the best model in designing an optical micro-diaphragm.

Item Type: Article
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Uncontrolled Keywords: Biosensor, Deflection, Optical MEMS, Polyimide, Pressure sensitivity, Pulse pressure, Resonance frequency, Silicon nitride, Biosensors, Deflection (structures), Frequency response, MEMS, Microelectromechanical devices, Natural frequencies, Polyimides, Pressure distribution, Pressure effects, Diaphragms
Subjects: T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Engineering
Depositing User: Mr Jenal S
Date Deposited: 24 Mar 2014 03:36
Last Modified: 01 Nov 2017 05:44

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