An ultrasonic through-wall communication system with power harvesting

D. A. Shoudy, G. J. Saulnier, H. A. Scarton, P. K. Das, S. Roa-Prada, J. D. Ashdown, A. J. Gavens

Producción científica: Libro / Capitulo del libro / InformeLibros de Investigaciónrevisión exhaustiva

60 Citas (Scopus)

Resumen

Electromagnetic "wireless" techniques are ineffective for communicating through a solid steel barrier due to the shielding effect of the metal. Although holes can be made in the barrier to allow wires to pass through, they are often undesirable because they can reduce the integrity of the barrier. In contrast, ultrasound propagates readily through steel and can be used to convey information without degrading the barrier. Since it may be inconvenient to periodically access the sensor side of the barrier, it is also desirable to make the sensor/communication system operate for an indefinite period without servicing. Power harvesting can be used to derive electric power for the circuits from the ultrasonic power applied at the other side of the barrier, making batteries unnecessary. This paper describes an ultrasonic communication system with power harvesting using two ultrasonic transducers and continuous-wave ultrasound techniques. Experimental results are presented, which were obtained using a 5.7 cm thick steel block with 2.54 cm piezoelectric transducers at 1 MHz. The data shows reliable communication at rates of up to 55 kbps and power delivery of over 0.25 W.

Idioma originalInglés
Título de la publicación alojada2007 IEEE Ultrasonics Symposium Proceedings, IUS
Páginas1848-1853
Número de páginas6
DOI
EstadoPublicada - 2007
Publicado de forma externa
Evento2007 IEEE Ultrasonics Symposium, IUS - New York, NY, Estados Unidos
Duración: 28 oct. 200731 oct. 2007

Serie de la publicación

NombreProceedings - IEEE Ultrasonics Symposium
ISSN (versión impresa)1051-0117

Conferencia

Conferencia2007 IEEE Ultrasonics Symposium, IUS
País/TerritorioEstados Unidos
CiudadNew York, NY
Período28/10/0731/10/07

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