Non-invasive respiratory monitoring using long-period fiber grating sensors

Marija D. Petrović, Jovana Petrovic, Aleksandar Daničić, Miodrag Vukčević, Bosko Bojović, Ljupčo Hadžievski, Thomas D.P. Allsop, Glynn Lloyd, David J. Webb

Research output: Contribution to journalArticlepeer-review


In non-invasive ventilation, continuous monitoring of respiratory volumes is essential. Here, we present a method for the measurement of respiratory volumes by a single fiber-grating sensor of bending and provide the proof-of-principle by applying a calibration-test measurement procedure on a set of 18 healthy volunteers. Results establish a linear correlation between a change in lung volume and the corresponding change in a local thorax curvature. They also show good sensor accuracy in measurements of tidal and minute respiratory volumes for different types of breathing. The proposed technique does not rely on the air flow through an oronasal mask or the observation of chest movement by a clinician, which distinguishes it from the current clinical practice.
Original languageEnglish
Pages (from-to)1136-1144
Number of pages9
JournalBiomedical Optics Express
Issue number4
Early online date12 Mar 2014
Publication statusPublished - 1 Apr 2014

Bibliographical note

© 2014 Optical Society of America
This paper was published in Biomedical optics express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.


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