Embedded Ultrasonic Transducer Design and Wireless Communications for Intelligent Monitoring of Structures

G. Hayward
2003 AIP Conference Proceedings  
This paper describes a wireless demonstrator system designed for generation and detection of fundamental symmetrical Lamb waves (S 0 ) characterized by high velocity and low attenuation. The demonstrator comprises two piezoceramic transducers embedded within an epoxy plate, drive and preamplification electronics, a microcontroller and a communications interface. This arrangement can be configured to operate in an active pitch-catch or pulse-echo interrogation mode or as a passive acoustic
more » ... on (AE) sensor. The history of AE incidents, for example, may then be transmitted by wireless link.
doi:10.1063/1.1570324 fatcat:jh7zdrhdl5c7pmg5oiusthwqya