A high performance and cost effective biosensor is designed using a radial contour-mode disk resonator (RCDR). This sensor measures tiny biological mass attached on a disk vibrating at a high frequency, producing high quality of output signal. A series of analysis and simulation models is developed to predict the mass sensitivity, dynamic stability, and motional resistance of the RCDR biosensor with given geometry and signal input. In order to decrease motional resistance while keeping the fabrication cost low, a layer of dielectric material is deposited within the capacitor gap. In designing the RCDR biosensors, we employ Type I, II, and III robust design approach to design a device that is insensitive to various types of uncertainty associated with the fabrication processes and analysis models. A mathematical construct, error margin index, is employed for this robust design. Traditional optimization and robust design approaches are separately formulated, solved, and compared. From the design results, we observe that the RCDR is a promising bio-sensing device compared to the existing ones.
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e-mail: AMIR0004@e.ntu.edu.sg
e-mail: yongjiny@ntu.edu.sg
e-mail: hsson@ntu.edu.sg
e-mail: hjchoi@cau.ac.kr
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April 2012
Research Papers
Simulation Based Design of Disk Resonator Biosensors Under Fabrication Uncertainty
Amir Heidari,
e-mail: AMIR0004@e.ntu.edu.sg
Amir Heidari
School of Mechanical and Aerospace Engineering
, Nanyang Technological University
, 639798 Singapore
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Yong-Jin Yoon,
e-mail: yongjiny@ntu.edu.sg
Yong-Jin Yoon
School of Mechanical and Aerospace Engineering
, Nanyang Technological University
, 639798 Singapore
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Hungsun Son,
e-mail: hsson@ntu.edu.sg
Hungsun Son
School of Mechanical and Aerospace Engineering
, Nanyang Technological University
, 639798 Singapore
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Hae-Jin Choi
e-mail: hjchoi@cau.ac.kr
Hae-Jin Choi
Assistant Professor
School of Mechanical Engineering
, Chung-Ang University
, Seoul, 156-756, South Korea
Search for other works by this author on:
Amir Heidari
School of Mechanical and Aerospace Engineering
, Nanyang Technological University
, 639798 Singapore
e-mail: AMIR0004@e.ntu.edu.sg
Yong-Jin Yoon
School of Mechanical and Aerospace Engineering
, Nanyang Technological University
, 639798 Singapore
e-mail: yongjiny@ntu.edu.sg
Hungsun Son
School of Mechanical and Aerospace Engineering
, Nanyang Technological University
, 639798 Singapore
e-mail: hsson@ntu.edu.sg
Hae-Jin Choi
Assistant Professor
School of Mechanical Engineering
, Chung-Ang University
, Seoul, 156-756, South Korea
e-mail: hjchoi@cau.ac.kr
J. Mech. Des. Apr 2012, 134(4): 041005 (11 pages)
Published Online: March 19, 2012
Article history
Received:
September 28, 2010
Revised:
February 4, 2012
Published:
March 15, 2012
Online:
March 19, 2012
Citation
Heidari, A., Yoon, Y., Son, H., and Choi, H. (March 19, 2012). "Simulation Based Design of Disk Resonator Biosensors Under Fabrication Uncertainty." ASME. J. Mech. Des. April 2012; 134(4): 041005. https://doi.org/10.1115/1.4006144
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