Introduction of a general model for the resonance parameters of fluid sensors and validation with recent sensor setups

A comprehensive investigation and comparison of recently published resonant viscosity and mass density sensors are presented. This investigation is based on the application of a generalized model and a subsequent interpretation of results. The devised model relates the measured resonant parameters (resonance frequency and quality factor) of the frequency response to the physical parameters of the fluid (mass density, shear viscosity and temperature). The presented model is applied to eight different resonant sensors in a frequency range from 400 Hz to 3.7 MHz and quality factors between 0.7 to 500.