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Vol. 17, Special Issue, December 2012, pp. 30-39


Selected papers from the 4th International Conference on Intelligent & Advanced Systems (ICIAS' 2012),

12-14 June 2012, Malaysia, Kuala Lumpur




Simulation of Liquid Material for Microfluidic-based Acoustic Sensor

USM Robotics Research Group, School of Electrical and Electronic Engineering

Universiti Sains Malaysia, Engineering Campus

14300 Nibong Tebal, Seberang Perai Selatan, Pulau Pinang, Malaysia

E-mail: mohdfaizal07@yahoo.com


Received: 29 September 2012   /Accepted: 29 October 2012   /Published: 18 December 2012

Digital Sensors and Sensor Sysstems


Abstract: This work investigates the performance of two different liquid materials, i.e. Propylene Carbonate and Methanol to be used in microfluidic-based acoustic sensor. Both liquids were selected based on several important liquid properties including surface tension and permittivity. By using these materials as the fluid element, the damping effect and flow response between both materials were then simulated to investigate their influence on the sensitivity resolution and response. The work was performed through Finite Element Model (FEM) using ANSYS 12.1. The damping analysis shows that the Propelyne Carbonate had less damping effect than Methanol, by comparing them to the air backing structure. This suggests that the Propylene Carbonate is a preferred material. However, in flow response analysis, Methanol demonstrates a better performance with about 18 times higher. This trade off behaviour urges that other factors such as application type, device dimension and sensitivity also need to be carefully considered before realising such sensor device.


Keywords: Microfluidic-based, Acoustic sensor, Damping effect, Flow response



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