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2 2017

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Distributed temperature sensing in optical fibers based on Raman scattering: theory and applications

Shatarah I. S. M., Olbrycht R.

Measurement Automation Monitoring

2017

Vol. 63, No. 2

41--44

Distributed temperature sensing (DTS) based on Raman scattering in optical fibers gains more importance in several applications, due to its accuracy, immunity to electromagnetic interference and corrosion, durability, low cost and availability. DTS systems are configured differently depending on the environment of application, and uses Optical Time Domain Reflectometry (OTDR) or Optical Frequency Domain Reflectometry (OFDR) for data analyzes. This study features a theoretical background and an introduction to DTS systems’ configurations and applications.

Distributed temperature sensing in optical fibers based on Raman scattering: demodulation algorithms

Shatarah I. S. M., Olbrycht R.

Measurement Automation Monitoring

2017

Vol. 63, No. 2

45--47

Distributed temperature sensing systems (DTS) has improved over years thanks to the improvements in configurations, components and demodulation calculating algorithms. The demodulation algorithms have been improved depending on the application and the environment, in which the fiber is installed, in order to obtain accurate measurements of temperature and distance. This study discusses the conventional calculating methods and proposed algorithms for different configurations for DTS systems.