Application of long period gratings sensors to respiratory function monitoring


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.

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Divisions: College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
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.
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)
ISBN: 978-0-8194-5541-3
Last Modified: 10 May 2024 07:19
Date Deposited: 11 Nov 2014 08:40
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Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
http://proceedi ... rticleid=851988 (Publisher URL)
PURE Output Type: Conference contribution
Published Date: 2004-12
Authors: Allsop, Thomas D.P. (ORCID Profile 0000-0001-8905-9014)
Earthgrowl, T.
Revees, R.
Webb, D.J. (ORCID Profile 0000-0002-5495-1296)
Miller, M.
Jones, B.
Bennion, I.



Version: Published Version

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