Development of distributed strain and temperature sensing cables

Daniele Inaudi, Branko Glisic

Research output: Contribution to journalConference article

37 Scopus citations

Abstract

Distributed fiber optic sensing presents unique features that have no match in conventional sensing techniques. The ability to measure temperatures and strain at thousands of points along a single fiber is particularly interesting for the monitoring of large structures such as pipelines, flow lines, oil wells, dams and dikes. Sensing systems based on Brillouin and Raman scattering have been used for example to detect pipeline leakages, verify pipeline operational parameters, prevent failure of pipelines installed in landslide areas, optimize oil production from wells and detect hot-spots in high-power cables. The measurement instruments have been vastly improved in terms of spatial, temperature and strain resolution, distance range, measurement time, data processing and system cost. Analyzers for Brillouin and Raman scattering are now commercially available and offer reliable operation in field conditions. New application opportunities have however demonstrated that the design and production of sensing cables is a critical element for the success of any distributed sensing instrumentation project. Although standard telecommunication cables can be effectively used for sensing ordinary temperatures, monitoring high and low temperatures or distributed strain present unique challenges that require specific cable designs. This contribution presents three cable designs for high-temperature sensing, strain sensing and combined strain and temperature monitoring.

Original languageEnglish (US)
Article number53
Pages (from-to)222-225
Number of pages4
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5855 PART I
DOIs
StatePublished - Dec 13 2005
Externally publishedYes
Event17th International Conference on Optical Fibre Sensors, OFS-17 - Bruges, Belgium
Duration: May 23 2005May 27 2005

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Keywords

  • Brillouin scattering
  • Cable design
  • Distributed sensing
  • Raman scattering
  • Strain monitoring
  • Temperature monitoring

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