Design of the data transmission component of a micrometre scale chloride ion sensor embedded inside a concrete structure

Abstract

This paper seeks to evaluate the feasibility of using ultrasonic radiation emanating from a Piezoelectric Micromachined Ultrasonic Transducer (PMUT) as ameans for transmitting data through the solid concrete structures. This enables embedded single chipMicro Electro-Mechanical System (MEMS) chloride detection sensors, to communicate with each other. The feasibility of using these devices is evaluated by studying the propagation of the ultrasonic radiation, through the concrete structure. This study was conducted through the use of a Finite Element Model (FEM). As part of the investigation, an encapsulation method was also designed and incorporated into the FEM. This enabled the conduct of the comparative parametric analysis, through which to examine parameters such as the resonant frequency and ultrasonic radiation propagation. Finally, both gaseous and liquid coupling fluid mechanisms were assessed for their applicability. The results described in this paper established the feasibility of using PMUT technology to achieve data transmission through concrete.