Development of wireless Ultrasonic Device

This paper presents the development of Wireless Ultrasonic Device (WUD) for structural health monitoring of aircraft structure. In recent years, large amount of research has been done to utilize the wireless communication method for structural health monitoring. However, majority of the current system has low sampling rate, low data throughput and less secure. In this study, we developed a wireless ultrasonic device that can generate a tone-burst signal, acquire ultrasonic wave at high sampling rate, and send acquired wave using Wi-Fi communication. The device is equipped with high speed microcontroller, Wi-Fi modem, and multiplexer circuit. Furthermore, the device uses the standard communication protocol Transmission Control Protocol/Internet Protocol (TCP/IP) for wireless communication, which make sure that the connection is secure and the data is transmitted without any error. The performance of device was compared with the results obtained through wired connection to prove the integrity of the device.