2 June 2014 Motion compensation in distributed fiber optic sensing via optical frequency domain reflectometry
Author Affiliations +
Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 91575R (2014) https://doi.org/10.1117/12.2058789
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain
Abstract
We demonstrate a novel algorithm for removing adverse effects of motion in distributed strain measurements via Optical Frequency Domain Reflectometry (OFDR), using Rayleigh backscatter from low-bend loss fiber as the transducer. Vibration amplitudes and frequencies of 2.5 Gs and up to 50 Hz, respectively, were corrected for in real-time while measuring up to 10,000 microstrain. Results show 99.3% recovery of motion-affected strain data while maintaining 0.3% accuracy and 5 mm spatial resolution. Measurement acquisition rates were 23.8 Hz and 100 Hz. These results demonstrate that OFDR may be used in dynamic environments to provide accurate and high-resolution, distributed strain measurements.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Joseph J. Bos, Nur Aida Abdul Rahim, "Motion compensation in distributed fiber optic sensing via optical frequency domain reflectometry", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91575R (2 June 2014); doi: 10.1117/12.2058789; https://doi.org/10.1117/12.2058789
PROCEEDINGS
4 PAGES


SHARE
Back to Top