Korovaiceva

The author proposes a finite-element quartz resonator model which allows to take into account the quality of the quartz plate surface layer for calculating its characteristics. For modeling the development of a damaged plate layer a modified law of crack growth in geological materials is proposed. Results of calculation of the resonator Q-factor change as a function of time are presented. In the calculations the proposed law of damaged layer development was taken into consideration. The results of the experiments confirming the proposed resonator model and development of the quartz plate damaged surface layer during its vibrations in quartz oscillator scheme are included in the article.