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- 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 is held in the form of molecular or lattice vibrations in the material. Molecular vibrations at high frequencies (10 THz) are responsible for Raman scattering. Low frequency vibrations (10-30 GHz) cause Brillouin scattering. Energy is exchanged between the light travelling through the fibre and the material itself and cause a frequency shift in the incident light. This frequency shift can then be used to measure temperature changes along the fibre. (en)
- Mit faseroptischer Temperaturmessung (engl. DTS für distributed temperature sensing) bezeichnet man den Einsatz von optoelektronischen Geräten zur Messung der Temperatur, wobei Glasfasern als lineare Sensoren benutzt werden. (de)
- Con medición de temperatura por fibra óptica (en ingl. DTS para Distributed Temperature Sensing) se designa el empleo de aparatos optoelectrónicos para medir la temperatura, utilizando fibras de vidrio como sensores lineales. (es)
- Волоко́нно-опти́ческое измере́ние температу́ры (английский вариант DTS = Distributed Temperature Sensing) — применение оптоэлектронных приборов для измерения температуры, в котором стеклянные волокна используются в качестве линейных датчиков. (ru)
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- Mit faseroptischer Temperaturmessung (engl. DTS für distributed temperature sensing) bezeichnet man den Einsatz von optoelektronischen Geräten zur Messung der Temperatur, wobei Glasfasern als lineare Sensoren benutzt werden. (de)
- Con medición de temperatura por fibra óptica (en ingl. DTS para Distributed Temperature Sensing) se designa el empleo de aparatos optoelectrónicos para medir la temperatura, utilizando fibras de vidrio como sensores lineales. (es)
- Волоко́нно-опти́ческое измере́ние температу́ры (английский вариант DTS = Distributed Temperature Sensing) — применение оптоэлектронных приборов для измерения температуры, в котором стеклянные волокна используются в качестве линейных датчиков. (ru)
- 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 (en)
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- Faseroptische Temperaturmessung (de)
- Monitoreo distribuido de temperatura (es)
- Distributed temperature sensing (en)
- Волоконно-оптическое измерение температуры (ru)
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