Theory and experiments on optical fiber strain sensors embedded in concrete
Calero, Javier
This item is only available for download by members of the University of Illinois community. Students, faculty, and staff at the U of I may log in with your NetID and password to view the item. If you are trying to access an Illinois-restricted dissertation or thesis, you can request a copy through your library's Inter-Library Loan office or purchase a copy directly from ProQuest.
Permalink
https://hdl.handle.net/2142/20532
Description
Title
Theory and experiments on optical fiber strain sensors embedded in concrete
Author(s)
Calero, Javier
Issue Date
1995
Doctoral Committee Chair(s)
Gamble, William L.
Department of Study
Civil and Environmental Engineering
Discipline
Civil Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Engineering, Civil
Engineering, Electronics and Electrical
Physics, Optics
Language
eng
Abstract
This thesis reports on theory and experiments on optical fibers embedded in concrete structures for the development of a polarimetric strain sensor. The objective is to study the feasibility of such a sensor and to identify the important issues in the design of the sensor system as well as its limitations. The two most important contributions of the theoretical analysis are the description of the micromechanics involved in measuring ambient strain from within a body using an embedded fiber sensor and the strain effects on the anisotropic birefringent properties of the optical fiber. The transmitted optical signal of the sensory system is theoretically studied, tested with different specimens and correlated with experimental work with good agreement. Throughout the experimental work much experience was gained on how to embed fibers in concrete and set up the system. This thesis provides guidelines and recommendations on the design of embedded fiber sensors in concrete structures. The detection of stress waves within concrete with the embedded polarimetric fiber sensing system is also demonstrated.
Use this login method if you
don't
have an
@illinois.edu
email address.
(Oops, I do have one)
IDEALS migrated to a new platform on June 23, 2022. If you created
your account prior to this date, you will have to reset your password
using the forgot-password link below.
