Open AccessFEM simulation and frequency shift calculation of a quartz crystal resonator adhered with soft micro-particulates considering contact deformation
Author(s) -
Xu Xie,
Yuhong Liu,
Yong Ye
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/892/1/012072
Subject(s) - materials science , composite material , vibration , resonator , finite element method , elastic modulus , spheres , deformation (meteorology) , quartz , contact area , elasticity (physics) , contact force , mechanics , structural engineering , acoustics , classical mechanics , physics , engineering , astronomy , optoelectronics
Recently some researchers studied the frequency characteristics of a quartz crystal resonator (QCR) adhered with micro-particles to measure their physical and geometric parameters. Many researchers regard the particles as rigid spheres or consider the elasticity but ignore the contact deformation and contact area of the particles. In fact, the adhesion and vibration of soft particles are coupled together and the interaction is strong and complicated. In this paper, we separately simulated the adhesion and vibration of the particles using finite element method with ANSYS software. Through transmission line model of the QCR, we get the frequency shift induced by surface particles. We found larger, softer and heavier particles produce greater contact deformation and load impedance which cause greater frequency shift (negative). The obtained results can be applied into characterization of size and elastic modulus of micro-particulates.