Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2007 · 11 citations · 0 references
EngineeringNuclear EngineeringNuclear InstrumentationOpticsThermal AnalysisFiber OpticsInterferometryOptical FibersReactor InstrumentationTemperature MeasurementTemperature SensorsFiber Optic InterferometryFiber SensorsFiber-optic SensorsFiber-optic Temperature SensorsInterferometric MeasurementOptical Fiber SensorsSingle-mode FibersSingle-mode Optical Fibers
We present the use of swept wavelength interferometry for distributed fiber-optic temperature measurements in a Nuclear Reactor. The sensors consisted of 2 m segments of commercially available, single mode optical fibers. The interrogation technique is based on measuring the spectral shift of the intrinsic Rayleigh backscatter signal along the optical fiber and converting the spectral shift to temperature.