Skip to Main Content
 

Global Search Box

 
 
 
 

Files

File List


Wood_THESIS_Final_2.pdf (2.68 MB)

ETD Abstract Container

Abstract Header

Evaluation of Single-Mode and Bragg Grating Optical Fibers Interrogated with an Optical Backscatter Reflectometer (OBR) in High Temperature Environments for Advanced Instrumentation in Nuclear Reactors

Wood, Thomas W, Jr
http://rave.ohiolink.edu/etdc/view?acc_num=osu1373364266

Abstract Details

2013, Master of Science, Ohio State University, Nuclear Engineering.
Optical fibers have made a drastic change in the telecommunications industry and in the more recent past have been developed and applied in making engineering measurements. Optical fibers have been used for various engineering measurement applications under harsh environments and this work explores the use of optical fiber sensors in the nuclear industry. In this work, inexpensive single-mode silica optical fibers, as well as Bragg Grating optical fibers, were interrogated with Luna Innovations’ Optical Backscatter Reflectometer (OBR) to perform distributed temperature measurements at temperatures up to 1000°C. Measurements of the backscattered signal were taken continuously to determine the amount of light that is backscattered as a function of temperature and position along the length of the fiber. This data was post-processed to determine the spectral shift in the Rayleigh backscatter signature. The spectral shift data was then calibrated to a change in temperature. This work found that the temperature sensing mechanism that utilizes the Fiber Bragg Gratings provides a reliable measurement at temperatures up to 100°C but at higher temperatures the measurement begins to fail. This work also determines an upper operational temperature limit of 500°C for the distributed measurement technique based on Rayleigh backscatter using Corning’s SMF-28e+ commercially available single-mode fiber.
Thomas Blue (Advisor)
Xioadong Sun (Committee Member)
59 p.
Nuclear Engineering
Optical, fiber, backscatter,reflectometer, OBR, nuclear, instrumentation

Recommended Citations

Citations

  • Wood, Jr, T. W. (2013). Evaluation of Single-Mode and Bragg Grating Optical Fibers Interrogated with an Optical Backscatter Reflectometer (OBR) in High Temperature Environments for Advanced Instrumentation in Nuclear Reactors [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1373364266

    APA Style (7th edition)

  • Wood, Jr, Thomas. Evaluation of Single-Mode and Bragg Grating Optical Fibers Interrogated with an Optical Backscatter Reflectometer (OBR) in High Temperature Environments for Advanced Instrumentation in Nuclear Reactors. 2013. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1373364266.

    MLA Style (8th edition)

  • Wood, Jr, Thomas. "Evaluation of Single-Mode and Bragg Grating Optical Fibers Interrogated with an Optical Backscatter Reflectometer (OBR) in High Temperature Environments for Advanced Instrumentation in Nuclear Reactors." Master's thesis, Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1373364266

    Chicago Manual of Style (17th edition)

osu1373364266
1,213
© 2013, some rights reserved.Creative Commons License Evaluation of Single-Mode and Bragg Grating Optical Fibers Interrogated with an Optical Backscatter Reflectometer (OBR) in High Temperature Environments for Advanced Instrumentation in Nuclear Reactors by Thomas W Wood Jr is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. Based on a work at etd.ohiolink.edu.
This open access ETD is published by The Ohio State University and OhioLINK.