PSI - Issue 37

Available online at www.sciencedirect.com Available online at www.sciencedirect.com Available online at www.sciencedirect.com

ScienceDirect

Procedia Structural Integrity 37 (2022) 179–186 Structural Integrity Procedia 00 (2022) 000–000 Structural Integrity Procedia 00 (2022) 000–000

www.elsevier.com / locate / procedia www.elsevier.com / locate / procedia

© 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of Pedro Miguel Guimaraes Pires Moreira Abstract The Plastic Optical Fiber (POF) sensors can be low-cost or cost-competitive solutions to other sensing techniques due to their advantages, such as immunity to electromagnetic interference, compactness, lightweight, multiplexing capabilities. Scientists and engineers have already developed POF sensors capable of sensing strain, deflection, pressure, refractive index, and more. These make them suitable for structural health monitoring, medicine, environmental, chemical applications. Real-life implementations are subjected to various external factors, including vibrations, environmental conditions, light source fluctuations, component ag ing. Such factors may influence the fabricated sensor performance. To compensate for these factors, the academic community has explored solutions that utilize an optical coupler to split the optical signal, which then serves as a reference. For large-scale ap plications, these increase costs significantly. This research explores the influence of extrinsic losses (introduced by manufacturing procedures) and environmental conditions (ambient temperature) on the transmission capacities of the refractive index (RI) evanes cent wave absorption POF sensor. The sensor was fabricated using polishing methods and characterized by means of transmission capacities and RI sensitivity (in the range of 1.3330 – 1.4167) at di ff erent fabrication stages and extreme ambient temperatures. The findings presented in this paper will be used for the further development of evanescent wave absorption POF sensors, which can be used e.g. for measuring solution concentration, water contamination, etc. 2022 The Authors. Published by Elsevier B.V. is is an open access article under the CC BY-NC-ND license (http: // creativec mmons.org / licenses / by-nc-nd / 4.0 / ) r-review unde responsibility of Pedro Miguel Guimaraes Pires Moreira. Keywords: Plastic optical fiber; Optical sensor; Refractive index sensors; plastic optical fiber sensors Grzegorz Wo´ jcik a , Piotr Przystalka a a Department of Fundamentals of Machinery Design, Silesian University of Technology, Konarskiego 18A, Gliwice 44-100, Poland Abstract The Plastic Optical Fiber (POF) sensors can be low-cost or cost-competitive solutions to other sensing techniques due to their advantages, such as immunity to electromagnetic interference, compactness, lightweight, multiplexing capabilities. Scientists and engineers have already developed POF sensors capable of sensing strain, deflection, pressure, refractive index, and more. These make them suitable for structural health monitoring, medicine, environmental, chemical applications. Real-life implementations are subjected to various external factors, including vibrations, environmental conditions, light source fluctuations, component ag ing. Such factors may influence the fabricated sensor performance. To compensate for these factors, the academic community has explored solutions that utilize an optical coupler to split the optical signal, which then serves as a reference. For large-scale ap plications, these increase costs significantly. This research explores the influence of extrinsic losses (introduced by manufacturing procedures) and environmental conditions (ambient temperature) on the transmission capacities of the refractive index (RI) evanes cent wave absorption POF sensor. The sensor was fabricated using polishing methods and characterized by means of transmission capacities and RI sensitivity (in the range of 1.3330 – 1.4167) at di ff erent fabrication stages and extreme ambient temperatures. The findings presented in this paper will be used for the further development of evanescent wave absorption POF sensors, which can be used e.g. for measuring solution concentration, water contamination, etc. © 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http: // creativecommons.org / licenses / by-nc-nd / 4.0 / ) Peer-review under responsibility of Pedro Miguel Guimaraes Pires Moreira. Keywords: Plastic optical fiber; Optical sensor; Refractive index sensors; ICSI 2021 The 4th International Conference on Structural Integrity Experimental investigation of factors influencing the transmission capabilities of a low cost, side-polished evanescent wave absorption plastic optical fiber sensors Grzegorz Wo´ jcik a , Piotr Przystalka a a Department of Fundamentals of Machinery Design, Silesian University of Technology, Konarskiego 18A, Gliwice 44-100, Poland ICSI 2021 The 4th International Conference on Structural Integrity Experimental investigation of factors influencing the transmission capabilities of a low cost, side-polished evanescent wave absorption

1. Introduction 1. Introduction

Polymer optical fiber (POF) sensors have been reported to be capable of measuring a variety of parameters, includ ing strain, deflection, displacement, refractive index (RI), etc. They exhibit several advantages, such as immunity to electromagnetic interference (being a concern near power generating equipment), compactness, lightweight, capabil Polymer optical fiber (POF) sensors have been reported to be capable of measuring a variety of parameters, includ ing strain, deflection, displacement, refractive index (RI), etc. They exhibit several advantages, such as immunity to electromagnetic interference (being a concern near power generating equipment), compactness, lightweight, capabil

E-mail address: grzegorz.wojcik@polsl.pl, piotr.przystalka@polsl.pl E-mail address: grzegorz.wojcik@polsl.pl, piotr.przystalka@polsl.pl

2452-3216 © 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of Pedro Miguel Guimaraes Pires Moreira 10.1016/j.prostr.2022.01.075 2210-7843 © 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http: // creativecommons.org / licenses / by-nc-nd / 4.0 / ) Peer-review u der re ponsibility of Pedro Miguel Guimaraes Pires Morei a. 2210-7843 © 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http: // creativecommons.org / licenses / by-nc-nd / 4.0 / ) Peer-review under responsibility of Pedro Miguel Guimaraes Pires Moreira.