Title :
Evaluation of nonlinear elastic coefficient causing frequency shifts in AT-cut resonators
Author :
Hirose, Yasuo ; Tsuzuki, Yasuo
Author_Institution :
Fac. of Eng., Yokohama Nat. Univ., Yokohama, Japan
Abstract :
The authors describe an experimental evaluation scheme of the fourth order nonlinear elastic constant of quartz C6666 using AT-cut resonators. The evaluation has been made from measured quadratic frequency changes against excitation currents and actual vibration amplitude distributions of thickness-shear vibrations measured by an optical fiber vibration sensor. More reasonable estimates of C6666 were obtained compared with those previously reported which vary considerably from each other
Keywords :
crystal resonators; fibre optic sensors; frequency stability; quartz; vibration measurement; AT-cut resonators; C6666; SiO2 crystal resonators; amplitude frequency effect; excitation currents; experimental evaluation scheme; fourth order nonlinear elastic constant; frequency shifts; measured quadratic frequency changes; nonlinear elastic coefficient; optical fiber vibration sensor; quartz; thickness-shear vibrations; vibration amplitude distributions; Electrodes; Frequency measurement; Optical fiber sensors; Optical fibers; Optical resonators; Resonance; Resonant frequency; Stability; Thickness measurement; Vibration measurement;
Conference_Titel :
Frequency Control, 1991., Proceedings of the 45th Annual Symposium on
Conference_Location :
Los Angeles, CA
Print_ISBN :
0-87942-658-6
DOI :
10.1109/FREQ.1991.145887
