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Wireless power transmission using ultrasonic guided waves

Kural, Aleksander, Pullin, Rhys ORCID:, Featherston, Carol Ann ORCID:, Paget, C. and Holford, Karen Margaret ORCID: 2011. Wireless power transmission using ultrasonic guided waves. Journal of Physics. Conference Series 302 (1) , 012088. 10.1088/1742-6596/305/1/012088

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The unavailability of suitable power supply at desired locations is currently an important obstacle in the development of distributed, wireless sensor networks for applications such as structural health monitoring of aircraft. Proposed solutions range from improved batteries to energy harvesting from vibration, temperature gradients and other sources. A novel approach is being investigated at Cardiff University School of Engineering in cooperation with Airbus. It aims to utilise ultrasonic guided Lamb waves to transmit energy through the aircraft skin. A vibration generator is to be placed in a location where electricity supply is readily available. Ultrasonic waves generated by this device will travel through the aircraft structure to a receiver in a remote wireless sensor node. The receiver will convert the mechanical vibration of the ultrasonic waves back to electricity, which will be used to power the sensor node. This paper describes the measurement and modelling of the interference pattern which emerges when Lamb waves are transmitted continuously as in this power transmission application. The discovered features of the pattern, such as a large signal amplitude variation and a relatively high frequency, are presented and their importance for the development of a power transmission system is discussed.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Centre for Advanced Manufacturing Systems At Cardiff (CAMSAC)
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Additional Information: 9th International Conference on Damage Assessment of Structures (DAMAS 2011) 11–13 July 2011, St Anne's College, University of Oxford
Publisher: Institute of Physics
ISSN: 1742-6588
Last Modified: 06 Dec 2023 07:19

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