Frequency Sensitivity Performance Analysis of Single-Layer and Multi-Layer SAW-Based Sensor Using Finite Element Method

Abstract

To avoid the hazard of growing human contamination spread is a chief venture for medical personnel even as treating patients with coronavirus disorder 2019 (COVID-19). This endeavour is supposed to store Corona virus-inflamed sufferers from conveying unsafe risky gases (VOCs) through the gasoline flow. The volatile organic compound is usually constituted of the pathways of scientific respiratory devices. In his work, we present a one-port surface acoustic wave resonator for sensing dichloromethane (DCM) gas; it can be connected with a gas pathway system used in clinical gadgets. DCM gasoline sensing research for single-layer and multi-layer models was performed using COMSOL multiphysics software. We determined that displacement earlier than divulge and after the display and corresponding resonant frequency for 100 ppm fuel attention of DCM at room temperature. When exposed to the DCM gas, it has been observed that the multi-layer developed model gives more sensitivity than the single-layer model. The proposed structure has detected the calculation of different parameters. The sensitivity of the sensor to detect VOCs (generated in the gas trails of medical instruments) has been observed to be most appropriate in the current crisis of the COVID-19 pandemic.