Computer Aided Design of Tine of Tuning Fork Densitometer

Abstract

In order to assist the structural design of the tine part of the tuning fork densitometer, the parameters of the material used in the simulation should be effectively selected. First of all, the model is established according to the real tine, and the inherent frequencies and the vibration modes are obtained by modal analysis. The inherent frequency of the real tine is calculated through collecting the voltage signal of detection circuit. Then, the elastic modulus E and the Poisson's ratio λ parameters for simulation are adjusted finely to make sure that the inherent frequency of the simulation model is the same as the actual tine’s so as to determine the material parameters. Further, the thickness of the root beam on tine model is changed to analyze the influence of beam thickness on the inherent frequency and vibration modes by simulation.