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Analytical Modeling of Mass-Sensitive Gas Sensor based on MEMS Resonator

Ahmed, Abdelaziz Yousif and Dennis, John Ojur and Md Khir, M Haris and Mohamad Saad, Mohamad Naufal (2011) Analytical Modeling of Mass-Sensitive Gas Sensor based on MEMS Resonator. In: NPC 2011, 19 - 20 September 2011, UTP.

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Abstract

Modeling of a micromachined MEMS resonator for gas detection is presented in this paper. The principle of detection of the gaseous species is based on the change in resonant frequency of the microcantilever due to change in mass induced by the adsorption of an analyte molecule onto the surface of the active material deposited on the microresonator. The theoretical resonant frequency is found to be 20.1 kHz. The change in the resonant frequency Δf = 0.13 Hz when the mass changes by Δm =43.2 fg on the resonator platform.The sensitivity is theoretical calculated to be0.3 Hz/pg.

Item Type:Conference or Workshop Item (Paper)
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Departments / MOR / COE:Departments > Fundamental & Applied Sciences
ID Code:6966
Deposited By: Dr John Ojur Dennis
Deposited On:05 Dec 2011 03:01
Last Modified:31 Mar 2014 12:56

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