Next Article in Journal
Autonomous Docking Based on Infrared System for Electric Vehicle Charging in Urban Areas
Next Article in Special Issue
Trapping and Propelling Microparticles at Long Range by Using an Entirely Stripped and Slightly Tapered No-Core Optical Fiber
Previous Article in Journal
A Neuro-Fuzzy System for Characterization of Arm Movements
Previous Article in Special Issue
Wedge-Filtering of Geomorphologic Terrestrial Laser Scan Data
Article Menu

Export Article

Open AccessArticle
Sensors 2013, 13(2), 2631-2644; doi:10.3390/s130202631

On the Effects of the Lateral Strains on the Fiber Bragg Grating Response

1
École Polytechnique Fédérale de Lausanne (EPFL), LMAF-IGM-STI, CH-1015 Lausanne, Switzerland
2
Laboratory of Advanced Manufacturing Technologies and Testing, University of Piraeus, GR-18534 Piraeus, Greece
*
Author to whom correspondence should be addressed.
Received: 6 December 2012 / Revised: 6 February 2013 / Accepted: 13 February 2013 / Published: 21 February 2013
(This article belongs to the Special Issue Laser Sensing and Imaging)
View Full-Text   |   Download PDF [822 KB, uploaded 21 June 2014]   |  

Abstract

In this paper, a combined experimental-numerical based work was undertaken to investigate the Bragg wavelength shift response of an embedded FBG sensor when subjected to different conditions of multi-axial loading (deformation). The following cases are examined: (a) when an isotropic host material with no constrains on planes normal to the embedded sensor’s axis is biaxially loaded, (b) when the same isotropic host material is subjected to hydrostatic pressure and (c) when the hydrostatically loaded host material is an anisotropic one, as in the case of a composite material, where the optical fiber is embedded along the reinforcing fibers. The comparison of the experimental results and the finite element simulations shows that, when the axial strain on the FBG sensor is the dominant component, the standard wavelength-shift strain relation can be used even if large lateral strains apply on the sensor. However when this is not the case, large errors may be introduced in the conversion of the wavelength to axial strains on the fiber. This situation arises when the FBG is placed parallel to high modulus reinforcing fibers of a polymer composite. View Full-Text
Keywords: fiber optic sensor; optomechanical constant; biaxial loading; hydrostatic pressure; epoxy; carbon/epoxy fiber optic sensor; optomechanical constant; biaxial loading; hydrostatic pressure; epoxy; carbon/epoxy
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Lai, M.; Karalekas, D.; Botsis, J. On the Effects of the Lateral Strains on the Fiber Bragg Grating Response. Sensors 2013, 13, 2631-2644.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top