Application of long period gratings sensors to respiratory function monitoring

Allsop, Thomas D.P., Earthgrowl, T., Revees, R., Webb, D.J., Miller, M., Jones, B. and Bennion, I. (2004). Application of long period gratings sensors to respiratory function monitoring. IN: Smart medical and biomedical sensor technology II. Cullum, Brian M. (ed.) SPIE proceedings . SPIE.

Abstract

A series of in-line curvature sensors on a garment are used to monitor the thoracic and abdominal movements of a human during respiration. These results are used to obtain volumetric tidal changes of the human torso showing reasonable agreement with a spirometer used simultaneously to record the volume at the mouth during breathing. The curvature sensors are based upon long period gratings written in a progressive three layered fibre that are insensitive to refractive index changes. The sensor platform consists of the long period grating laid upon a carbon fibre ribbon, which is encapsulated in a low temperature curing silicone rubber. An array of sensors is also used to reconstruct the shape changes of a resuscitation manikin during simulated respiration. The data for reconstruction is obtained by two methods of multiplexing and interrogation: firstly using the transmission spectral profile of the LPG's attenuation bands measured using an optical spectrum analyser; secondly using a derivative spectroscopy technique.

Publication DOI: https://doi.org/10.1117/12.569297
Divisions: Engineering & Applied Sciences > Electrical, electronic & power engineering
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Additional Information: Thomas D. Allsop ; Tim Earthrowl ; Richard Revees ; David J. Webb ; Martin Miller ; Barrie W. Jones and Ian Bennion "Application of long-period grating sensors to respiratory function monitoring", Proc. SPIE 5588, Smart Medical and Biomedical Sensor Technology II, 148 (December 7, 2004); Copyright 2004 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. http://dx.doi.org/10.1117/12.569297
Event Title: Smart Medical and Biomedical Sensor Technology II
Event Type: Other
Event Dates: 2004-10-25
Uncontrolled Keywords: curvature sensing,respiratory monitoring,long period gratings,Engineering(all)
Published Date: 2004-12

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