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Compact and low-cost optical fiber respiratory monitoring sensor based on intensity interrogation

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posted on 2023-01-09, 14:31 authored by WERN KAMWERN KAM, Waleed S. Mohammed, Gabriel LeenGabriel Leen, Mary O'Keeffe, Kieran O'SullivanKieran O'Sullivan, Sinead O'KeeffeSinead O'Keeffe, Elfed LewisElfed Lewis
In this paper, a plastic optical fiber sensor for respiratory monitoring purposes is presented. The sensor was integrated into a small, robust, and flexible package to be attached directly on a wide variety of positions on the upper body tomonitor themotion induced by breathing. The sensor's operating principle is based on the variation in the intensity of the optical coupling intensity ratio between an input and a set of aligned output optical fibers. The system is demonstrated to be able to track the time-varying breathing signal when the sensor is placed at four different positions of the torso (including diaphragmatic and upper costal). The accuracy of the device is confirmed by a simultaneous comparison of the results with a commercial respiratory monitoring device. Measurement of breathing rate on four different healthy subjects showed excellent agreement with the measurement from the commercial respiratory monitoring device. The proposed fiber optic respiration sensor provides the advantages of being relatively low cost, compact, and simple in construction compared to the conventional existing respiration sensors.

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Publication

Journal of Lightwave Technology;35 (20), pp. 4567-4573

Publisher

IEEE Computer Society

Note

peer-reviewed

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© 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

Language

English

Department or School

  • Allied Health
  • Electronic & Computer Engineering

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