TY - GEN
T1 - Validation of Finite Element Model (FEM) of coplanar electrodes capacitive sensing using microfluidic-based sensor device
AU - Rahman, Mohamad Faizal Abd
AU - Nawi, Mohd Norzaidi Mat
AU - Manaf, Asrulnizam Abd
AU - Arshad, Mohd Rizal
AU - Sidek, Othman
PY - 2013
Y1 - 2013
N2 - This work aims to validate the 2D Finite Element Model (FEM) for estimating the capacitance changes across a microchannel with coplanar electrodes configuration employed. Such electrodes configuration becomes popular in microfluidic-based application where the sensing activity occurs inside a microchannel. ANSYS 12.1 is used to built the 2D model of the structure. The work begin by building the FEM model to find the capacitance per unit length,C/l or C* of different combination of coplanar structures. The variation yields an error of less than 17% as compared to analytical equation with both models having the same trend of capacitance changes. Then, based on the theory of capacitance in parallel, both models are further verified experimentally using a fabricated sensor device that employs a selected structure combination. Comparing the FEM and analytical model to the experimental measurement, the result shows the error of 5% and 24% for both models, respectively.
AB - This work aims to validate the 2D Finite Element Model (FEM) for estimating the capacitance changes across a microchannel with coplanar electrodes configuration employed. Such electrodes configuration becomes popular in microfluidic-based application where the sensing activity occurs inside a microchannel. ANSYS 12.1 is used to built the 2D model of the structure. The work begin by building the FEM model to find the capacitance per unit length,C/l or C* of different combination of coplanar structures. The variation yields an error of less than 17% as compared to analytical equation with both models having the same trend of capacitance changes. Then, based on the theory of capacitance in parallel, both models are further verified experimentally using a fabricated sensor device that employs a selected structure combination. Comparing the FEM and analytical model to the experimental measurement, the result shows the error of 5% and 24% for both models, respectively.
KW - Capacitive sensing
KW - coplanar electrodes
KW - microfluidic
UR - http://www.scopus.com/inward/record.url?scp=84883364641&partnerID=8YFLogxK
U2 - 10.1109/CICSYN.2013.77
DO - 10.1109/CICSYN.2013.77
M3 - Conference Proceeding
AN - SCOPUS:84883364641
SN - 9780769550428
T3 - Proceedings - 5th International Conference on Computational Intelligence, Communication Systems, and Networks, CICSyN 2013
SP - 409
EP - 413
BT - Proceedings - 5th International Conference on Computational Intelligence, Communication Systems, and Networks, CICSyN 2013
T2 - 5th International Conference on Computational Intelligence, Communication Systems, and Networks, CICSyN 2013
Y2 - 5 June 2013 through 7 June 2013
ER -