Fiber Optic Load Cells with Enhanced Sensitivity by Optical Vernier Effect

Developing technologies capable of constantly assessing and optimizing day-to-day activities has been a research priority for several years. A key factor in such technologies is the use of highly sensitive sensors to monitor in real-time numerous parameters, such as temperature and load. Due to thei...

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Autores principales:	Tiago Paixão, Ricardo Ferreira, M. Fátima Domingues, Paulo Antunes
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	optical fiber sensors load sensing optical Vernier effect Fabry–Pérot interferometer Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/b3d01ab971324da4b9cdf10c20c4477d
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spelling	oai:doaj.org-article:b3d01ab971324da4b9cdf10c20c4477d2021-11-25T18:58:53ZFiber Optic Load Cells with Enhanced Sensitivity by Optical Vernier Effect10.3390/s212277371424-8220https://doaj.org/article/b3d01ab971324da4b9cdf10c20c4477d2021-11-01T00:00:00Zhttps://www.mdpi.com/1424-8220/21/22/7737https://doaj.org/toc/1424-8220Developing technologies capable of constantly assessing and optimizing day-to-day activities has been a research priority for several years. A key factor in such technologies is the use of highly sensitive sensors to monitor in real-time numerous parameters, such as temperature and load. Due to their unique features, optical fiber sensors became one of the most interesting and viable solutions for applications dependent on those parameters. In this work, we present an optical fiber load sensor, called load cell, based on Fabry–Pérot hollow cavities embedded in a polymeric material. By using the load cells in a parallel configuration with a non-embedded hollow cavity, the optical Vernier effect was generated, allowing maximum sensitivity values of 0.433 nm N<sup>−1</sup> and 0.66 nm °C<sup>−1</sup> to be attained for vertical load and temperature, respectively. The proposed sensor’s performance, allied with the proposed configuration, makes it a viable and suitable device for a wide range of applications, namely those requiring high thermal and load sensitivities.Tiago PaixãoRicardo FerreiraM. Fátima DominguesPaulo AntunesMDPI AGarticleoptical fiber sensorsload sensingoptical Vernier effectFabry–Pérot interferometerChemical technologyTP1-1185ENSensors, Vol 21, Iss 7737, p 7737 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	optical fiber sensors load sensing optical Vernier effect Fabry–Pérot interferometer Chemical technology TP1-1185
spellingShingle	optical fiber sensors load sensing optical Vernier effect Fabry–Pérot interferometer Chemical technology TP1-1185 Tiago Paixão Ricardo Ferreira M. Fátima Domingues Paulo Antunes Fiber Optic Load Cells with Enhanced Sensitivity by Optical Vernier Effect
description	Developing technologies capable of constantly assessing and optimizing day-to-day activities has been a research priority for several years. A key factor in such technologies is the use of highly sensitive sensors to monitor in real-time numerous parameters, such as temperature and load. Due to their unique features, optical fiber sensors became one of the most interesting and viable solutions for applications dependent on those parameters. In this work, we present an optical fiber load sensor, called load cell, based on Fabry–Pérot hollow cavities embedded in a polymeric material. By using the load cells in a parallel configuration with a non-embedded hollow cavity, the optical Vernier effect was generated, allowing maximum sensitivity values of 0.433 nm N<sup>−1</sup> and 0.66 nm °C<sup>−1</sup> to be attained for vertical load and temperature, respectively. The proposed sensor’s performance, allied with the proposed configuration, makes it a viable and suitable device for a wide range of applications, namely those requiring high thermal and load sensitivities.
format	article
author	Tiago Paixão Ricardo Ferreira M. Fátima Domingues Paulo Antunes
author_facet	Tiago Paixão Ricardo Ferreira M. Fátima Domingues Paulo Antunes
author_sort	Tiago Paixão
title	Fiber Optic Load Cells with Enhanced Sensitivity by Optical Vernier Effect
title_short	Fiber Optic Load Cells with Enhanced Sensitivity by Optical Vernier Effect
title_full	Fiber Optic Load Cells with Enhanced Sensitivity by Optical Vernier Effect
title_fullStr	Fiber Optic Load Cells with Enhanced Sensitivity by Optical Vernier Effect
title_full_unstemmed	Fiber Optic Load Cells with Enhanced Sensitivity by Optical Vernier Effect
title_sort	fiber optic load cells with enhanced sensitivity by optical vernier effect
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/b3d01ab971324da4b9cdf10c20c4477d
work_keys_str_mv	AT tiagopaixao fiberopticloadcellswithenhancedsensitivitybyopticalverniereffect AT ricardoferreira fiberopticloadcellswithenhancedsensitivitybyopticalverniereffect AT mfatimadomingues fiberopticloadcellswithenhancedsensitivitybyopticalverniereffect AT pauloantunes fiberopticloadcellswithenhancedsensitivitybyopticalverniereffect
_version_	1718410484644839424

Fiber Optic Load Cells with Enhanced Sensitivity by Optical Vernier Effect

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