Propanol detection using square lattice solid-fluid phononiccrystal sensor

A cavity-based acoustic sensor in square array solid-fluid phononic crystal is presented for the detection ofcomposition of propanol and water mixtures. The matrix and inclusions are regarded to be steel and air and the cavitywith double detection units has been tailored which provides the detection mechanism based on resonance frequencyshift. The finite element method has been implemented to calculate the displacement resonant frequency induced for eachconcentration of propanol in water. The sensor operates in the transmission window of ~۱.۵۱kHz-۲.۱۸kHz within thephononic band gap frequency range and it can find potential applications in petrochemical industry.

Keywords:

Phononic crystal sensor , propanol detection , FEM.