Comparison between Deflection and Vibration Characteristics of Rectangular and Trapezoidal profile Microcantilevers

Arrays of microcantilevers are increasingly being used as physical, biological, and chemical sensors in various applications. To improve the sensitivity of microcantilever sensors, this study analyses and compares the deflection and vibration characteristics of rectangular and trapezoidal profile mi...

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Bibliographic Details
Published in:Sensors (Basel, Switzerland) Switzerland), 2009-04, Vol.9 (4), p.2706-2718
Main Authors: Ansari, Mohd Zahid, Cho, Chongdu, Kim, Jooyong, Bang, Booun
Format: Article
Language:English
Subjects:
Biosensors
Deflection
Finite element analysis
Investigations
Kinases
Microcantilever
Polyethylene terephthalate
Resonant Frequency
Sensor
Sensors
Signal to noise ratio
Software
Surface stress
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Summary:Arrays of microcantilevers are increasingly being used as physical, biological, and chemical sensors in various applications. To improve the sensitivity of microcantilever sensors, this study analyses and compares the deflection and vibration characteristics of rectangular and trapezoidal profile microcantilevers. Three models of each profile are investigated. The cantilevers are analyzed for maximum deflection, fundamental resonant frequency and maximum stress. The surface stress is modelled as in-plane tensile force applied on the top edge of the microcantilevers. A commercial finite element analysis software ANSYS is used to analyze the designs. Results show paddled trapezoidal profile microcantilevers have better sensitivity.
ISSN:1424-8220
1424-8220
DOI:10.3390/s90402706