Print Email Facebook Twitter Calibrating single-ended fiber-optic raman spectra distributed temperature sensing data Title Calibrating single-ended fiber-optic raman spectra distributed temperature sensing data Author Hausner, M.B. Suarez, F. Glander, K.E. Van de Giesen, N.C. Selker, J.S. Tyler, S.W. Faculty Civil Engineering and Geosciences Department Water Management Date 2011-12-31 Abstract Hydrologic research is a very demanding application of fiber-optic distributed temperature sensing (DTS) in terms of precision, accuracy and calibration. The physics behind the most frequently used DTS instruments are considered as they apply to four calibration methods for single-ended DTS installations. The new methods presented are more accurate than the instrument-calibrated data, achieving accuracies on the order of tenths of a degree root mean square error (RMSE) and mean bias. Effects of localized non-uniformities that violate the assumptions of single-ended calibration data are explored and quantified. Experimental design considerations such as selection of integration times or selection of the length of the reference sections are discussed, and the impacts of these considerations on calibrated temperatures are explored in two case studies. Subject distributed temperature sensing,calibration,hydrologytemperature To reference this document use: http://resolver.tudelft.nl/uuid:f87d4fb7-bf03-4af5-ae9c-94eb656dd1bd DOI https://doi.org/10.3390/s111110859 Publisher MDPI ISSN 1424-8220 Source Sensors, 11(11)2011 Part of collection Institutional Repository Document type journal article Rights (c) 2011 The Authors Files PDF 288501.pdf 487.36 KB Close viewer /islandora/object/uuid:f87d4fb7-bf03-4af5-ae9c-94eb656dd1bd/datastream/OBJ/view