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

Sensors

Mohd. Zahid Ansari²  Chongdu Cho¹  Jooyong Kim² 

[1] id="af1-sensors-09-02706">Department of Mechanical Engineering, Inha University, 253 Yonghyun-dong, Nam-Ku, Incheon, 402-751 Republic of Kor

关键词: Sensor;    Surface stress;    Microcantilever;    Resonant Frequency;    Deflection;   

DOI  :  10.3390/s90402706

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2009 by the authors; licensee MDPI, Basel, Switzerland