Title :
Advances in high resolution distributed temperature sensing using the time-correlated single photon counting technique
Author :
Feced, R. ; Farhadiroushan, M. ; Handerek, V.A. ; Rogers, A.J.
Author_Institution :
Dept. of Electron. & Electr. Eng., King´´s Coll., London, UK
fDate :
6/1/1997 12:00:00 AM
Abstract :
A very high spatial resolution distributed optical fibre temperature sensor system is demonstrated using Raman scattering and time-correlated single photon counting. The spatial resolution of the system is 3.5 cm. A temperature resolution of 2°C has been achieved with 1 minute measurement time when averaging the data points over 10 cm. The system shows the feasibility of the time-correlated single photon counting technique for distributed sensing measurements, offering a practical solution for applications where very high spatial resolution is needed
Keywords :
fibre optic sensors; optical correlation; optical resolving power; photon counting; sensitivity; temperature measurement; temperature sensors; 10 cm; Raman scattering; data points; distributed sensing measurements; high resolution distributed temperature sensing; spatial resolution; temperature resolution; time-correlated single photon counting; time-correlated single photon counting technique; very high spatial resolution; very high spatial resolution distributed optical fibre temperature sensor;
Journal_Title :
Optoelectronics, IEE Proceedings -
DOI :
10.1049/ip-opt:19971183
