Standard optical fibers for load measuring of concrete structures using BOTDR

Marcel Fajkus; Jan Nedoma; Pavel Mec; Jan Jargus; Jan Vanus; Radek Martinek; Vladimír Vašinek

doi:10.1117/12.2304926

14 May 2018 Standard optical fibers for load measuring of concrete structures using BOTDR

Marcel Fajkus, Jan Nedoma, Pavel Mec, Jan Jargus, Jan Vanus, Radek Martinek, Vladimír Vašinek

Proceedings Volume 10654, Fiber Optic Sensors and Applications XV; 1065415 (2018) https://doi.org/10.1117/12.2304926
Event: SPIE Commercial + Scientific Sensing and Imaging, 2018, Orlando, FL, United States

Abstract

Distributed fiber optic systems based on Brillouin Time Domain Reflectrometry BOTDR offer an exclusive solution for monitoring the load of large building structures such as buildings, bridges, tunnels, etc. Deformation measurements use special optical cables with added reinforcement element and a closer bond between cable jacket and fiber optic to achieve high sensitivity to mechanical deformation. Alternatively, cheaper standard optical fiber cables with single-fiber optic fibers are used. Alternatively, there is possible to use cheaper standard optical cables with single mode optical fibers. The paper deals with the analysis of the suitability of standard optical cables for the deformations measurement using a distributed BOTDR system. Several standard types of telecommunication optical cables were implemented into concrete beams and bent in a hydraulic press. The main result of this paper is the deformation sensitivities determination of optical cables for load measurement and the suitability analysis for embedding into the concrete beam with regard to long life.

Citation Download Citation

Marcel Fajkus, Jan Nedoma, Pavel Mec, Jan Jargus, Jan Vanus, Radek Martinek, and Vladimír Vašinek "Standard optical fibers for load measuring of concrete structures using BOTDR", Proc. SPIE 10654, Fiber Optic Sensors and Applications XV, 1065415 (14 May 2018); https://doi.org/10.1117/12.2304926

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available