Nonlinearity and hysteresis of resonant strain gauges

Gui, Chengqun and Legtenberg, Rob and Tilmans, Harrie A.C. and Fluitman, Jan H.J and Elwenspoek, Miko (1998) Nonlinearity and hysteresis of resonant strain gauges. Journal of Microelectromechanical Systems, 7 (1). pp. 122-127. ISSN 1057-7157

Preview

PDF
196Kb

Abstract:	The nonlinearity and hysteresis effects of the electrostatically activated voltage-driven resonant microbridges have been studied theoretically and experimentally. It is shown that in order to avoid vibration instability and hysteresis to occur, the choices of the ac and dc driving voltages and of the quality factor of a resonator, with a given geometry and choice of materials, are limited by a hysteresis criterion. The limiting conditions are also formulated as the hysteresis-free design rules. Expressions for the maximum allowable quality factor and maximum attainable figure of merit are given. Experimental results, as obtained from electrostatically driven vacuum-encapsulated low-pressure chemical-vapor deposition (LPCVD) polysilicon microbridges, are presented and show good agreement with the theory
Item Type:	Article
Copyright:	© 1998 IEEE
Faculty:	Electrical Engineering, Mathematics and Computer Science (EEMCS)
Research Group:	Transducers Science and Technology (TST)
Link to this item:	http://purl.utwente.nl/publications/14224
Official URL:	http://dx.doi.org/10.1109/84.661394
Export this item as:	BibTeX EndNote HTML Citation Reference Manager

Repository Staff Only: item control page

Metis ID: 111499