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Experimental verification of distributed temperature sensor model based on spontaneous Raman scattering
Mathematical model of distributed temperature sensor based on spontaneous Raman scattering is described in this paper. The concept uses Stokes and anti-Stokes scattered signals as reference and detection signals respectively. Model is completed by experimental results coming from setup of 200 m G.652 sensing fiber tested in temperatures 3°C, 15°C, 23 °C and 30°C and 3000 m reference fiber preserved in 22°C. Parameters of the scattered signal source in used setup configuration allow to achieve distributed temperature profile with spatial resolution up to 50 m.
Author: Robert CybulskiConference: Title