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Development of Force Sensor System Based on Tri-Axial Fiber Bragg Grating with Flexure Structure

Fiber Bragg grating (FBG) sensors have an advantage over optical sensors in that they are lightweight, easy to terminate, and have a high flexibility and a low cost. Additionally, FBG is highly sensitive to strain and temperature, which is why it has been used in FBG force sensor systems for cardiac...

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Autores principales: Shin, Dongjoo, Kim, Hyeong-U, Kulkarni, Atul, Kim, Young-Hak, Kim, Taesung
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8747225/
https://www.ncbi.nlm.nih.gov/pubmed/35009561
http://dx.doi.org/10.3390/s22010016
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author Shin, Dongjoo
Kim, Hyeong-U
Kulkarni, Atul
Kim, Young-Hak
Kim, Taesung
author_facet Shin, Dongjoo
Kim, Hyeong-U
Kulkarni, Atul
Kim, Young-Hak
Kim, Taesung
author_sort Shin, Dongjoo
collection PubMed
description Fiber Bragg grating (FBG) sensors have an advantage over optical sensors in that they are lightweight, easy to terminate, and have a high flexibility and a low cost. Additionally, FBG is highly sensitive to strain and temperature, which is why it has been used in FBG force sensor systems for cardiac catheterization. When manually inserting the catheter, the physician should sense the force at the catheter tip under the limitation of power (<0.5 N). The FBG force sensor can be optimal for a catheter as it can be small, low-cost, easy to manufacture, free of electromagnetic interference, and is materially biocompatible with humans. In this study, FBG fibers mounted on two different flexure structures were designed and simulated using ANSYS simulation software to verify their sensitivity and durability for use in a catheter tip. The selected flexure was combined with three FBGs and an interrogator to obtain the wavelength signals. To obtain a calibration curve, the FBG sensor obtained data on the change in wavelength with force at a high resolution of 0.01 N within the 0.1–0.5 N range. The calibration curve was used in the force sensor system by the LabVIEW program to measure the unknown force values in real time.
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spelling pubmed-87472252022-01-11 Development of Force Sensor System Based on Tri-Axial Fiber Bragg Grating with Flexure Structure Shin, Dongjoo Kim, Hyeong-U Kulkarni, Atul Kim, Young-Hak Kim, Taesung Sensors (Basel) Article Fiber Bragg grating (FBG) sensors have an advantage over optical sensors in that they are lightweight, easy to terminate, and have a high flexibility and a low cost. Additionally, FBG is highly sensitive to strain and temperature, which is why it has been used in FBG force sensor systems for cardiac catheterization. When manually inserting the catheter, the physician should sense the force at the catheter tip under the limitation of power (<0.5 N). The FBG force sensor can be optimal for a catheter as it can be small, low-cost, easy to manufacture, free of electromagnetic interference, and is materially biocompatible with humans. In this study, FBG fibers mounted on two different flexure structures were designed and simulated using ANSYS simulation software to verify their sensitivity and durability for use in a catheter tip. The selected flexure was combined with three FBGs and an interrogator to obtain the wavelength signals. To obtain a calibration curve, the FBG sensor obtained data on the change in wavelength with force at a high resolution of 0.01 N within the 0.1–0.5 N range. The calibration curve was used in the force sensor system by the LabVIEW program to measure the unknown force values in real time. MDPI 2021-12-21 /pmc/articles/PMC8747225/ /pubmed/35009561 http://dx.doi.org/10.3390/s22010016 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Shin, Dongjoo
Kim, Hyeong-U
Kulkarni, Atul
Kim, Young-Hak
Kim, Taesung
Development of Force Sensor System Based on Tri-Axial Fiber Bragg Grating with Flexure Structure
title Development of Force Sensor System Based on Tri-Axial Fiber Bragg Grating with Flexure Structure
title_full Development of Force Sensor System Based on Tri-Axial Fiber Bragg Grating with Flexure Structure
title_fullStr Development of Force Sensor System Based on Tri-Axial Fiber Bragg Grating with Flexure Structure
title_full_unstemmed Development of Force Sensor System Based on Tri-Axial Fiber Bragg Grating with Flexure Structure
title_short Development of Force Sensor System Based on Tri-Axial Fiber Bragg Grating with Flexure Structure
title_sort development of force sensor system based on tri-axial fiber bragg grating with flexure structure
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8747225/
https://www.ncbi.nlm.nih.gov/pubmed/35009561
http://dx.doi.org/10.3390/s22010016
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