Application notes

Case studies

Technical notes




published: 15.01.2018

Join us at the FOSA Webinar on Thursday, March 15th from 2:00 to 3:00 PM EasternTime!

We will share our experience with geotechnical monitoring based on optical fiber distributed sensors.


View web version of this message





FOSA Webinar
Transport Infrastructure Geohazard Risk Monitoring with Optical Fiber Distributed Sensors
Presented by Omnisens
Thursday, March 15  2:00-3:00 PM ET


Transport Infrastructure Geohazard Risk Monitoring with Optical Fiber Distributed Sensors - Experience with Andean and Arctic Pipelines: Many pipelines are built in regions affected by harsh environmental conditions where changes in soil texture between winter and summer increase the likelihood of risks. Pipeline routes also cross mountains that are characterized by steep slopes and unstable soils as in the Andes and along the coastal range of Brazil. In other cases, these pipelines are laid in remote areas with significant seismic activity or exposure to permafrost. Depending on weather conditions and location, visual inspection is difficult or even impossible and therefore remote sensing solutions for pipes offer significant advantages over conventional inspection techniques. Optical fibers can help solve these challenges. Optical fiber based geotechnical and structural monitoring take advantage of scattering sensitivity to strain and temperature. The analysis of scattering combined with a time domain technique allows the measurement of strain and temperature profiles. Temperature measurement is carried out to control soil erosion or dune migration through event quantification and spatial location. Direct measurement of strain in the soil also improves the detection of environmental hazards. As an example the technology can pinpoint the early signs of landslide or subsidence.

Case studies presenting pipeline monitoring in Arctic and Siberian environment as well as in the Andes will illustrate how the technology is used and demonstrate proof of early detection and location of events such as erosion, landslide, settlement and pipe deformation.

Presented by Dr. Fabien Ravet, Omnisens do Brasil General Manager

FOSA is a non-profit organization created in Washington DC in 2017 with the mission of educating industry, government and the public on the benefits of fiber optic sensing. Through webinars, videos, white papers, public presentations and public policy advocacy, the organization provides information on the use of fiber optic sensing to secure critical facilities, enhance public safety and protect the environment.

FOSA Members include Adelos, AFL, AP Sensing, Asymmetric Technologies, Corning, Ditch Witch, Dura-Line, Fotech Solutions, Frauscher Sensor Technology USA Inc., NKT Photonics, OFS, Omnisens, OptaSense, OZ Optics, and Prysmian. For more information please visit the FOSA website.