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Project C11.2019 Abstract:

Long-distance distributed sensing of bridges using fiber optic sensors is achieved by the Brillouin scattering of nonlinear acoustic photons (laser light) inside an optical fiber. Such nonlinear scattering of incident photons can be exploited to obtain the change of state (due to temperature or stress) at different locations in an optical fiber over a long distance (e.g., from several to hundreds of miles). In this project, Brillouin Optical Time Domain Reflectometer (BOTDR) technique has been adopted for distributed sensing of mechanical and thermal strains of bridges. Figure 2 shows the schematic configuration of BOTDR for bridge monitoring and the conceptual description of multiphysical observation of structural behavior for health monitoring. We will develop a system-level distributed sensing technique and its design procedure for composite and concrete bridges, as well as developing structural health monitoring algorithms based on mechanical and electromagnetic measurements using fiber optic, video motion, and radar sensors.


Principal Investigator:
Dr. Tzuyang Yu (UML)

Institution:
University of Massachusetts Lowell
University of Vermont
University of Maine

Co-PIs:
Dr. Susan Faraji (UML)
Dr. Xingwei Wang (UML)
Dr. Zhu Mao (UML)
Dr. Ehsan Ghazafari (UVM)
Dr. Bill Davids (UMaine)

Project Type:
Competitive-Funded Research

Start Date:
1/1/2020

Project Cost:
$166,304

Project Status:
In Progress

End Date:
12/31/2021

Agency ID:
69A3551847101

Sponsors:
University Transportation Centers Program
University of Massachusetts Lowell
University of Vermont
University of Maine


Implementation of Research Outcomes:
This project is in its initial research phase. Implementation of Research outcomes will be reported upon completion of initial research.

Impacts and Benefits of Implementation:
This project is in its initial research phase. Impacts and benefits of the research will be reported after the implementation phase.

Related Links:
Coming Soon


Downloadable Documents

Printable Project Information Sheet

June 2020 Quarterly Progress Report

September 2020 Quarterly Progress Report

December 2020 Quarterly Progress Report

March 2021 Quarterly Progress Report

June 2021 Quarterly Progress Report

September 2021 Quarterly Progress Report

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