Distributed fiber optic sensing technologies and applications - An overview

Research output: Chapter in Book/Report/Conference proceedingConference contribution

12 Scopus citations

Abstract

Needs for structural health monitoring in the last decades were rapidly increasing, and these needs stimulated developments of various sensing technologies. Distributed optical fiber sensing technologies have reached market maturity and opened new possibilities in structural health monitoring. Distributed strain sensor (sensing cable) is sensitive at each point of its length to strain changes and cracks. Such a sensor practically monitors one-dimensional strain field and can be installed over the entire length of the monitored structural members, and therefore provides for integrity monitoring, i.e. for direct detection and characterization of local strain changes generated by damage (including recognition, localization, and quantification or rating). The aim of this paper is to help researchers and practitioners to get familiar with distributed sensing technologies, to understand the meaning of the distributed measurement, and to learn on best performances and limitations of these technologies. Hence, this paper briefly presents light scattering as the main physical principle behind technologies, explains the spatial resolution as the important feature for interpretation of measurements, compares performances of various distributed technologies found in the market, and introduces the concept of integrity monitoring applicable to various concrete structures. Two illustrative examples are presented, including applications to pipeline and bridge.

Original languageEnglish (US)
Title of host publicationStructural Health Monitoring Technologies 2011 - Held at the ACI Fall 2011 Convention
PublisherAmerican Concrete Institute
Pages13-30
Number of pages18
Edition292 SP
ISBN (Print)9781632663214
StatePublished - Jan 1 2011
EventStructural Health Monitoring Technologies 2011 at the ACI Fall 2011 Convention - Cincinnati, OH, United States
Duration: Oct 16 2011Oct 20 2011

Publication series

NameAmerican Concrete Institute, ACI Special Publication
Number292 SP
ISSN (Print)0193-2527

Other

OtherStructural Health Monitoring Technologies 2011 at the ACI Fall 2011 Convention
CountryUnited States
CityCincinnati, OH
Period10/16/1110/20/11

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)

Keywords

  • Bridge monitoring
  • Brillouin scattering
  • Distributed fiber optic sensors
  • Integrity monitoring
  • Overview of technology
  • Pipeline monitoring
  • Structural health monitoring

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  • Cite this

    Glisic, B. (2011). Distributed fiber optic sensing technologies and applications - An overview. In Structural Health Monitoring Technologies 2011 - Held at the ACI Fall 2011 Convention (292 SP ed., pp. 13-30). (American Concrete Institute, ACI Special Publication; No. 292 SP). American Concrete Institute.