2 June 2014 Motion compensation in distributed fiber optic sensing via optical frequency domain reflectometry
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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.
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Joseph J. Bos, Joseph J. Bos, Nur Aida Abdul Rahim, 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
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