Low-Cost Interrogation Technique for Dynamic Measurements with FBG-Based Devices

Fiber Bragg gratings are widely used optical fiber sensors for measuring temperature and/or mechanical strain. Nevertheless, the high cost of the interrogation systems is the most important drawback for their large commercial application. In this work, an in-line Fabry–Perot interferometer based edg...

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Main Authors:	Camilo A. R. Díaz, Cátia Leitão, Carlos A. Marques, M. Fátima Domingues, Nélia Alberto, Maria José Pontes, Anselmo Frizera, Moisés R. N. Ribeiro, Paulo S. B. André, Paulo F. C. Antunes
Format:	Article
Language:	English
Published:	MDPI AG 2017-10-01
Series:	Sensors
Subjects:	interrogation technique fiber Bragg grating (FBG) in-line Fabry–Perot interferometer (FPI) optical accelerometer arterial central pulse waveform cardiovascular monitoring
Online Access:	https://www.mdpi.com/1424-8220/17/10/2414

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spelling	doaj-d83d36e4e9b7425f952f08f488a8f60c2020-11-24T21:51:19ZengMDPI AGSensors1424-82202017-10-011710241410.3390/s17102414s17102414Low-Cost Interrogation Technique for Dynamic Measurements with FBG-Based DevicesCamilo A. R. Díaz0Cátia Leitão1Carlos A. Marques2M. Fátima Domingues3Nélia Alberto4Maria José Pontes5Anselmo Frizera6Moisés R. N. Ribeiro7Paulo S. B. André8Paulo F. C. Antunes9Telecommunications Laboratory LABTEL, Electrical Engineering Department, Federal University of Espírito Santo, 29075-910 Espírito Santo, BrazilDepartment of Physics & I3N, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, PortugalDepartment of Physics & I3N, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, PortugalDepartment of Physics & I3N, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, PortugalInstituto de Telecomunicações, Campus Universitário de Santiago, 3810-193 Aveiro, PortugalTelecommunications Laboratory LABTEL, Electrical Engineering Department, Federal University of Espírito Santo, 29075-910 Espírito Santo, BrazilTelecommunications Laboratory LABTEL, Electrical Engineering Department, Federal University of Espírito Santo, 29075-910 Espírito Santo, BrazilTelecommunications Laboratory LABTEL, Electrical Engineering Department, Federal University of Espírito Santo, 29075-910 Espírito Santo, BrazilDepartment of Electrical and Computer Engineering and Instituto de Telecomunicações, Instituto Superior Técnico, University of Lisbon, 1049-001 Lisbon, PortugalDepartment of Physics & I3N, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, PortugalFiber Bragg gratings are widely used optical fiber sensors for measuring temperature and/or mechanical strain. Nevertheless, the high cost of the interrogation systems is the most important drawback for their large commercial application. In this work, an in-line Fabry–Perot interferometer based edge filter is explored in the interrogation of fiber Bragg grating dynamic measurements up to 5 kHz. Two devices an accelerometer and an arterial pulse wave probe were interrogated with the developed approach and the results were compared with a commercial interrogation monitor. The data obtained with the edge filter are in agreement with the commercial device, with a maximum RMSE of 0.05 being able to meet the requirements of the measurements. Resolutions of 3.6 pm and 2.4 pm were obtained, using the optical accelerometer and the arterial pulse wave probe, respectively.https://www.mdpi.com/1424-8220/17/10/2414interrogation techniquefiber Bragg grating (FBG)in-line Fabry–Perot interferometer (FPI)optical accelerometerarterial central pulse waveformcardiovascular monitoring
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Camilo A. R. Díaz Cátia Leitão Carlos A. Marques M. Fátima Domingues Nélia Alberto Maria José Pontes Anselmo Frizera Moisés R. N. Ribeiro Paulo S. B. André Paulo F. C. Antunes
spellingShingle	Camilo A. R. Díaz Cátia Leitão Carlos A. Marques M. Fátima Domingues Nélia Alberto Maria José Pontes Anselmo Frizera Moisés R. N. Ribeiro Paulo S. B. André Paulo F. C. Antunes Low-Cost Interrogation Technique for Dynamic Measurements with FBG-Based Devices Sensors interrogation technique fiber Bragg grating (FBG) in-line Fabry–Perot interferometer (FPI) optical accelerometer arterial central pulse waveform cardiovascular monitoring
author_facet	Camilo A. R. Díaz Cátia Leitão Carlos A. Marques M. Fátima Domingues Nélia Alberto Maria José Pontes Anselmo Frizera Moisés R. N. Ribeiro Paulo S. B. André Paulo F. C. Antunes
author_sort	Camilo A. R. Díaz
title	Low-Cost Interrogation Technique for Dynamic Measurements with FBG-Based Devices
title_short	Low-Cost Interrogation Technique for Dynamic Measurements with FBG-Based Devices
title_full	Low-Cost Interrogation Technique for Dynamic Measurements with FBG-Based Devices
title_fullStr	Low-Cost Interrogation Technique for Dynamic Measurements with FBG-Based Devices
title_full_unstemmed	Low-Cost Interrogation Technique for Dynamic Measurements with FBG-Based Devices
title_sort	low-cost interrogation technique for dynamic measurements with fbg-based devices
publisher	MDPI AG
series	Sensors
issn	1424-8220
publishDate	2017-10-01
description	Fiber Bragg gratings are widely used optical fiber sensors for measuring temperature and/or mechanical strain. Nevertheless, the high cost of the interrogation systems is the most important drawback for their large commercial application. In this work, an in-line Fabry–Perot interferometer based edge filter is explored in the interrogation of fiber Bragg grating dynamic measurements up to 5 kHz. Two devices an accelerometer and an arterial pulse wave probe were interrogated with the developed approach and the results were compared with a commercial interrogation monitor. The data obtained with the edge filter are in agreement with the commercial device, with a maximum RMSE of 0.05 being able to meet the requirements of the measurements. Resolutions of 3.6 pm and 2.4 pm were obtained, using the optical accelerometer and the arterial pulse wave probe, respectively.
topic	interrogation technique fiber Bragg grating (FBG) in-line Fabry–Perot interferometer (FPI) optical accelerometer arterial central pulse waveform cardiovascular monitoring
url	https://www.mdpi.com/1424-8220/17/10/2414
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Low-Cost Interrogation Technique for Dynamic Measurements with FBG-Based Devices

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