Next Article in Journal
Sensor-Based Detection of the Severity of Hyperkeratosis in the Teats of Dairy Cows
Previous Article in Journal
A Deep Learning Approach on Building Detection from Unmanned Aerial Vehicle-Based Images in Riverbank Monitoring
Previous Article in Special Issue
Polymer Based Whispering Gallery Mode Humidity Sensor
Article Menu
Issue 11 (November) cover image

Export Article

Open AccessArticle
Sensors 2018, 18(11), 3923; https://doi.org/10.3390/s18113923

Evaluating the Performance of Functionalized Carbon Structures with Integrated Optical Fiber Sensors under Practical Conditions

1
Hannover Centre for Optical Technologies (HOT), Leibniz University Hannover, 30167 Hannover, Germany
2
School of Engineering and the Built Environment, Edinburgh Napier University, Edinburgh EH11 4BN, UK
3
Saxon Textile Research Institute (STFI), 09125 Chemnitz, Germany
4
Materialforschungs-und-Prüfanstalt an der Bauhaus-Universität Weimar (MFPA), 99423 Weimar, Germany
*
Author to whom correspondence should be addressed.
Received: 22 October 2018 / Revised: 9 November 2018 / Accepted: 12 November 2018 / Published: 14 November 2018
(This article belongs to the Special Issue State-of-the-Art Sensors Technology in Germany)
Full-Text   |   PDF [50348 KB, uploaded 14 November 2018]   |  

Abstract

An Optical Frequency Domain Reflectometry (OFDR) based fiber optic sensor scheme “embedded” in concrete for the purpose of structural health monitoring (SHM) of carbon concrete composites (C3) is presented. The design, while strengthening the concrete structure, also aims to monitor common SHM parameters such as strain and cracks. This was achieved by weaving the carbon fiber together with optical fiber, based on a specialized technique that uses an embroidery setup where both the carbon and optical fiber are woven on a water dissolvable polymer substrate. The performance of the sensing scheme was characterized in-situ utilizing the OFDR based technique and the results presented. The sensors embedded on a custom made concrete block were subjected to varying strain via a three point bending test to destruction and the results discussed. The intended dual-achievement of the scheme thus proposed in SHM and strengthening the C3 is demonstrated. The suitability of the OFDR scheme for C3 is combined with a fibre Bragg grating (FBG)-based approach, and discussed in detail. View Full-Text
Keywords: carbon concrete composite; structural health monitoring; optical frequency domain reflectometry; fibre Bragg grating; strain measurement carbon concrete composite; structural health monitoring; optical frequency domain reflectometry; fibre Bragg grating; strain measurement
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Bremer, K.; Alwis, L.S.M.; Weigand, F.; Kuhne, M.; Zheng, Y.; Krüger, M.; Helbig, R.; Roth, B. Evaluating the Performance of Functionalized Carbon Structures with Integrated Optical Fiber Sensors under Practical Conditions. Sensors 2018, 18, 3923.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

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