One Centimeter Spatial Resolution Temperature Measurements in a Nuclear Reactor Using Rayleigh Scatter in Optical Fiber
We present distributed temperature measurements in a nuclear reactor.
We present the use of swept wavelength interferometry for distributed fiber-optic, temperature measurements in a Nuclear Reactor over 3m fiber segments of commercially available, single mode 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.
A. K. Sang et al.,"One Centimeter Spatial Resolution Temperature Measurements in a Nuclear Reactor using Rayleigh Scatter in Optical Fiber," IEEE Sensors J., vol. 8, no. 7, pp. 1375-1380, July 2008.