Title :
More comprehensive model of quartz crystal microbalance response to viscoelastic loading
Author :
Bruenig, Raimund ; Schmidt, Hagen ; Guhr, Glen ; Weihnacht, Manfred
Author_Institution :
Leibniz Inst. for Solid State & Mater. Res., Dresden
Abstract :
Using a one-dimensional approach the electric admittance |Y| of a quartz crystal microbalance (QCM) is calculated as a function of frequency depending on material properties as well as the acoustic impedance of an arbitrary loading. Several solutions for the shift of specific frequencies are derived and methods presented to either suppress or compute the influence of parasitic effects. Measurements of high and complex viscosities are possible. The model has been confirmed experimentally.
Keywords :
acoustic impedance; electric admittance; microbalances; piezoelectric devices; quartz; viscoelasticity; viscosity measurement; SiO2; acoustic impedance; complex viscosity; electric admittance; one-dimensional approach; quartz crystal microbalance response; viscoelastic loading; Acoustic materials; Acoustic propagation; Admittance; Crystalline materials; Elasticity; Impedance; Oscillators; Resonant frequency; Surface acoustic waves; Viscosity; QCM; complex viscosity; quartz crystal microbalance;
Conference_Titel :
Ultrasonics Symposium, 2008. IUS 2008. IEEE
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2428-3
Electronic_ISBN :
978-1-4244-2480-1
DOI :
10.1109/ULTSYM.2008.0069
