Design Considerations of Miller Oscillators for High-Sensitivity QCM Sensors in Damping Media

Autor: R. Brendel, H. Perrot, L. Rodriguez-Pardo, J. Faria, Claude Gabrielli
Přispěvatelé: Universidade de Vigo, Université Pierre et Marie Curie - Paris 6 (UPMC), Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174) (FEMTO-ST), Université de Technologie de Belfort-Montbeliard (UTBM)-Ecole Nationale Supérieure de Mécanique et des Microtechniques (ENSMM)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC)-Centre National de la Recherche Scientifique (CNRS), Université de Technologie de Belfort-Montbeliard (UTBM)-Ecole Nationale Supérieure de Mécanique et des Microtechniques (ENSMM)-Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC)
Rok vydání: 2007
Předmět:
Zdroj: IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, Institute of Electrical and Electronics Engineers, 2007, 54 (10), pp.1965-1976
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2007, 54 (10), pp.1965-1976
ISSN: 1525-8955
0885-3010
DOI: 10.1109/tuffc.2007.490
Popis: In this paper, a new contribution to the design of quartz crystal oscillators for high-sensitivity microbalance sensors used in liquid media is presented. The oscillation condition for a Miller configuration was studied to work in a wide dynamic range of the resonator losses. The equations relating the values of the active and passive components with the maximum supported damping and mass were obtained. Also, the conditions to obtain a stable frequency according to the resonator damping (R(Q)), the static capacity (Cp) and the filter frequency (f(F)) were found. Under these conditions, the circuit oscillation frequency will be proportional to the resonant series frequency and does not depend on the previous parameters (R(Q), f(F), and Cp). If these conditions cannot be satisfied, the expression of the oscillation frequency is given and the discrimination of these effects is obtained through resonator frequency measurements.
Databáze: OpenAIRE