Title :
Piezoelectric resonators loaded with viscoelastic and nonuniform media
Author_Institution :
AMSEL-RD-CS, US Army CECOM, Fort Monmouth, NJ, USA
Abstract :
This paper uses a simple, plane bulk acoustic wave model to discuss effects arising from changes occurring at the vibrating surfaces of a piezoelectric resonator, when exposed to coatings having various properties, as well as a variety of interfacial contact behaviors. The effect of air loading on the Q values of the three thickness modes of an SC-cut quartz resonator is computed for various pressures as an example of mode coupling by mechanical boundary conditions.
Keywords :
crystal resonators; quartz; viscoelasticity; Q values; SC-cut quartz resonator; SiO2; air loading; interfacial contact behaviors; mechanical boundary conditions; mode coupling; nonuniform media; piezoelectric resonators; plane bulk acoustic wave model; thickness modes; vibrating surfaces; viscoelastic media; Acoustic waves; Boundary conditions; Circuits; Crystalline materials; Elasticity; Phase change materials; Piezoelectric materials; Piezoelectricity; Surface acoustic waves; Viscosity;
Conference_Titel :
Frequency Control Symposium and PDA Exhibition, 2002. IEEE International
Print_ISBN :
0-7803-7082-1
DOI :
10.1109/FREQ.2002.1075877
