Sensor de temperatura BOTDA asistido por Raman, de 2 metros de resolución sobre 100 km de distancia con incertidumbre de 1.2 ºC
- Angulo Vinuesa, Xabier
- Martín López, Sonia
- Nuño del Campo, Javier
- Corredera Guillén, Pedro
- Ania Castañón, Juan Diego
- González Herráez, Miguel
ISSN: 2171-8814
Argitalpen urtea: 2012
Zenbakien izenburua: ESPECIAL OPTOEL´11
Alea: 45
Zenbakia: 2
Orrialdeak: 145-154
Mota: Artikulua
Beste argitalpen batzuk: Óptica pura y aplicada
Laburpena
In order to increase significantly the measuring range of the distributed sensors based on Brillouin Optical Time Domain Analysis (BOTDA) technology it is possible to employ Raman assistance. In this work we have developed a distributed Brillouin temperature sensor assisted by first-order Raman amplification that measures 100 km range with 2 meter resolution. The uncertainty in temperature discrimination is 1.2oC, even for the position of worst contrast. The parameters used in the experiment are supported by a simple analytical model of the required values, considering the main limitations of the setup.