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Sensors 2013, 13(6), 7156-7169; doi:10.3390/s130607156

Finite Element Analysis of Electrically Excited Quartz Tuning Fork Devices

Department of Electronics, University of Barcelona, Marti Franques, 1, 08028 Barcelona, Spain
* Author to whom correspondence should be addressed.
Received: 1 March 2013 / Revised: 22 May 2013 / Accepted: 28 May 2013 / Published: 30 May 2013
(This article belongs to the Special Issue Piezoelectric Sensors and Actuators)
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Quartz Tuning Fork (QTF)-based Scanning Probe Microscopy (SPM) is an important field of research. A suitable model for the QTF is important to obtain quantitative measurements with these devices. Analytical models have the limitation of being based on the double cantilever configuration. In this paper, we present an electromechanical finite element model of the QTF electrically excited with two free prongs. The model goes beyond the state-of-the-art of numerical simulations currently found in the literature for this QTF configuration. We present the first numerical analysis of both the electrical and mechanical behavior of QTF devices. Experimental measurements obtained with 10 units of the same model of QTF validate the finite element model with a good agreement.
Keywords: quartz tuning fork; finite element modeling; piezoelectric sensors quartz tuning fork; finite element modeling; piezoelectric sensors
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Oria, R.; Otero, J.; González, L.; Botaya, L.; Carmona, M.; Puig-Vidal, M. Finite Element Analysis of Electrically Excited Quartz Tuning Fork Devices. Sensors 2013, 13, 7156-7169.

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