Distributed Fiber Optic Sensing System for Bridge Monitoring

Details

• Creators:
  Wang, Xingwei ; Yu, Tzuyang
• Corporate Creators:
  University of Massachusetts at Lowell
• Subject/TRT Terms:
  Base Lines Bridge Management Systems Data Collection Fiber Optics Footbridges Infrastructure Remote Sensing Structural Health Monitoring Testing
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Corporate Publisher:
  University of Massachusetts, Lowell
• Abstract:
  The deterioration of infrastructure presents a major challenge for the economy of any country. Additionally, the risk factor of possible loss of life has made Structural Health Monitoring (SHM) an important approach to evaluate the status of any civil infrastructure. Among different methods, Fiber Optics Sensors have shown great potential to complement current monitoring techniques. Its ability to survive harsh environments, immunity to electromagnetic interference, and its capability to provide thousands of data points from a single fiber has made this system very attractive. For this reason, this project aims to continue researching the use of Distributed Fiber Optics Sensors as a mechanism to constantly monitor bridges. Interrogation methods such as Optical Frequency Domain Reflectometry (OFDR), Brillouin Optical Time Domain Amplification (BOTDA), and Brillouin Optical Time Domain Reflectometry (BOTDR) are explored. Also, the development of smart textiles where fiber is embedded in the fabric will continue to be studied. New patterns based on the structure requirement will be developed and tested. Finally, data will be obtained from real bridges located in New Hampshire and Maine. The information collected will be used to validate the proposed approaches by comparing the results with other sensing systems such as strain gauges.
• Format:
  PDF
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:3405c3666118c808eb07e66752abfa87c2049a2291c75da8495993b73c3b69f1397ab52ee56f3d5000dde51f82490c54b1b57b0096ec80dfdee68a75bbd12dcd
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/88708/dot_88708_DS1.pdf
• File Type:
  [PDF - 3.47 MB ]