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Highly sensitive multicore fiber accelerometer for low frequency vibration sensing
We report on a compact, highly sensitive all-fiber accelerometer suitable for low frequency and low amplitude vibration sensing. The sensing elements in the device are two short segments of strongly coupled asymmetric multicore fiber (MCF) fusion spliced at 180° with respect to each other. Such segm...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7528111/ https://www.ncbi.nlm.nih.gov/pubmed/32999364 http://dx.doi.org/10.1038/s41598-020-73178-x |
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author | Amorebieta, Josu Ortega-Gomez, Angel Durana, Gaizka Fernández, Rubén Antonio-Lopez, Enrique Schülzgen, Axel Zubia, Joseba Amezcua-Correa, Rodrigo Villatoro, Joel |
author_facet | Amorebieta, Josu Ortega-Gomez, Angel Durana, Gaizka Fernández, Rubén Antonio-Lopez, Enrique Schülzgen, Axel Zubia, Joseba Amezcua-Correa, Rodrigo Villatoro, Joel |
author_sort | Amorebieta, Josu |
collection | PubMed |
description | We report on a compact, highly sensitive all-fiber accelerometer suitable for low frequency and low amplitude vibration sensing. The sensing elements in the device are two short segments of strongly coupled asymmetric multicore fiber (MCF) fusion spliced at 180° with respect to each other. Such segments of MCF are sandwiched between standard single mode fibers. The reflection spectrum of the device exhibits a narrow spectrum whose height and position in wavelength changes when it is subjected to vibrations. The interrogation of the accelerometer was carried out by a spectrometer and a photodetector to measure simultaneously wavelength shift and light power variations. The device was subjected to a wide range of vibration frequencies, from 1 mHz to 30 Hz, and accelerations from 0.76 mg to 29.64 mg, and performed linearly, with a sensitivity of 2.213 nW/mg. Therefore, we believe the accelerometer reported here may represent an alternative to existing electronic and optical accelerometers, especially for low frequency and amplitude vibrations, thanks to its compactness, simplicity, cost-effectiveness, implementation easiness and high sensitivity. |
format | Online Article Text |
id | pubmed-7528111 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-75281112020-10-02 Highly sensitive multicore fiber accelerometer for low frequency vibration sensing Amorebieta, Josu Ortega-Gomez, Angel Durana, Gaizka Fernández, Rubén Antonio-Lopez, Enrique Schülzgen, Axel Zubia, Joseba Amezcua-Correa, Rodrigo Villatoro, Joel Sci Rep Article We report on a compact, highly sensitive all-fiber accelerometer suitable for low frequency and low amplitude vibration sensing. The sensing elements in the device are two short segments of strongly coupled asymmetric multicore fiber (MCF) fusion spliced at 180° with respect to each other. Such segments of MCF are sandwiched between standard single mode fibers. The reflection spectrum of the device exhibits a narrow spectrum whose height and position in wavelength changes when it is subjected to vibrations. The interrogation of the accelerometer was carried out by a spectrometer and a photodetector to measure simultaneously wavelength shift and light power variations. The device was subjected to a wide range of vibration frequencies, from 1 mHz to 30 Hz, and accelerations from 0.76 mg to 29.64 mg, and performed linearly, with a sensitivity of 2.213 nW/mg. Therefore, we believe the accelerometer reported here may represent an alternative to existing electronic and optical accelerometers, especially for low frequency and amplitude vibrations, thanks to its compactness, simplicity, cost-effectiveness, implementation easiness and high sensitivity. Nature Publishing Group UK 2020-09-30 /pmc/articles/PMC7528111/ /pubmed/32999364 http://dx.doi.org/10.1038/s41598-020-73178-x Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Amorebieta, Josu Ortega-Gomez, Angel Durana, Gaizka Fernández, Rubén Antonio-Lopez, Enrique Schülzgen, Axel Zubia, Joseba Amezcua-Correa, Rodrigo Villatoro, Joel Highly sensitive multicore fiber accelerometer for low frequency vibration sensing |
title | Highly sensitive multicore fiber accelerometer for low frequency vibration sensing |
title_full | Highly sensitive multicore fiber accelerometer for low frequency vibration sensing |
title_fullStr | Highly sensitive multicore fiber accelerometer for low frequency vibration sensing |
title_full_unstemmed | Highly sensitive multicore fiber accelerometer for low frequency vibration sensing |
title_short | Highly sensitive multicore fiber accelerometer for low frequency vibration sensing |
title_sort | highly sensitive multicore fiber accelerometer for low frequency vibration sensing |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7528111/ https://www.ncbi.nlm.nih.gov/pubmed/32999364 http://dx.doi.org/10.1038/s41598-020-73178-x |
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