Abstract: The harmonic response of quartz crystal resonator was discussed based on finite element method.By changing the size of the AT-cut quartz wafer, the vibration displacement distribution for each quartz crystal axial was obtained.The simulation results can be used to analyze the thickness shear vibration mode and the parasitic vibration mode.The comparison between the simulation and the test results showed that the simulation method is helpful to design the quartz crystal resonators.

Key words: The harmonic response of quartz crystal resonator was discussed based on finite element method.By changing the size of the AT-cut quartz wafer, the vibration displacement distribution for each quartz crystal axial was obtained.The simulation results can be used to analyze the thickness shear vibration mode and the parasitic vibration mode.The comparison between the simulation and the test results showed that the simulation method is helpful to design the quartz crystal resonators.