Impact of Inter Tine Coupling on the Spring Constant of the Quartz Tuning Fork

Abstract

Inter tines coupling spring constant $(k_{c})$ influences the eigenfrequencies, effective spring constant $(k_{eff)}$ and sensitivity of the quartz tuning fork (QTF). We have investigated the effect of coupling spring constant $(k_{c})$ on eigenfrequencies, effective spring constant $(k_{eff)}$ and sensitivity using analytical and simulation methods. The aim of study is to obtain an optimal design for the QTF having cantilever beam as the basic element with flexible base and enhanced sensitivity. The simulation and analytical results suggest that by reducing the coupling spring constant (kc), the effective spring constant $(k_{eff)}$ can be reduce and the sensitivity of tuning fork can be enhanced.