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Sensors 2011, 11(1), 455-471; doi:10.3390/s110100455

A Fibre Bragg Grating Sensor as a Receiver for Acoustic Communications Signals

Optics Research Laboratory, Centre for Communications Engineering Research, School of Engineering, Edith Cowan University, 270 Joondalup Drive, Joondalup 6027 WA, Australia
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Received: 28 October 2010 / Revised: 6 December 2010 / Accepted: 24 December 2010 / Published: 4 January 2011
(This article belongs to the Special Issue State-of-the-Art Sensors Technology in Australia and New Zealand)
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Abstract

A Fibre Bragg Grating (FBG) acoustic sensor is used as a receiver for acoustic communications signals. Acoustic transmissions were generated in aluminium and Carbon Fibre Composite (CFC) panels. The FBG receiver was coupled to the bottom surface opposite a piezoelectric transmitter. For the CFC, a second FBG was embedded within the layup for comparison. We show the transfer function, frequency response, and transient response of the acoustic communications channels. In addition, the FBG receiver was used to detect Phase Shift Keying (PSK) communications signals, which was shown to be the most robust method in a highly resonant communications channel. View Full-Text
Keywords: acoustic sensing; fibre Bragg grating; optical fibre sensing; wireless communications acoustic sensing; fibre Bragg grating; optical fibre sensing; wireless communications
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Wild, G.; Hinckley, S. A Fibre Bragg Grating Sensor as a Receiver for Acoustic Communications Signals. Sensors 2011, 11, 455-471.

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