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About: Distributed temperature sensing     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:WikicatPowerCables, within Data Space : dbpedia.org associated with source document(s)

Type: yago:WikicatMeasuringInstrumentsyago:WikicatTransducersyago:WikicatSensorsyago:Artifact100021939yago:Cable102934168yago:Conductor103088707yago:Detector103180969yago:Device103183080yago:ElectricalDevice103269401yago:Instrument103574816yago:Instrumentality103575240yago:MeasuringInstrument103733925yago:Object100002684yago:PhysicalEntity100001930yago:PowerLine103995535deviceyago:Transducer104470953yago:Whole100003553yago:WikicatPowerCables New Facet based on Instances of this Class

Distributed temperature sensing systems (DTS) are optoelectronic devices which measure temperatures by means of optical fibres functioning as linear sensors. Temperatures are recorded along the optical sensor cable, thus not at points, but as a continuous profile. A high accuracy of temperature determination is achieved over great distances. Typically the DTS systems can locate the temperature to a spatial resolution of 1 m with accuracy to within ±1°C at a resolution of 0.01°C. Measurement distances of greater than 30 km can be monitored and some specialised systems can provide even tighter spatial resolutions. Thermal changes along the optical fibre cause a local variation in the refractive index, which in turn leads to the inelastic scattering of the light propagating through it. Heat i