Distributed hydrogen sensing using in-fiber Rayleigh scattering
نویسندگان
چکیده
منابع مشابه
Distributed Optical Fiber Sensing Based on Rayleigh Scattering
Optical fiber sensors offer unprecedented features, the most unique of which is the ability of monitoring variations of the observed physical field with spatial continuity along the fiber. These distributed optical fiber sensors are based on the scattering processes that originate from the interaction between light and matter. Among the three different scattering processes that may take place i...
متن کاملLoss and gyroscopic sensing using Rayleigh scattering in a fiber ring resonator
The idea of interrogating a fiber-optic ring using an optical time-domain reflectometer (OTDR) was originally developed for checking the linearity of the OTDR. But it tuns out that the trace delivered by the OTDR is strongly modified when the quality factor of the ring resonator increases. Thus a complete model of the OTDR response taking account on the coherence properties of the Rayleigh diff...
متن کاملDistributed Temperature and Strain Discrimination with Stimulated Brillouin Scattering and Rayleigh Backscatter in an Optical Fiber
A distributed optical fiber sensor with the capability of simultaneously measuring temperature and strain is proposed using a large effective area non-zero dispersion shifted fiber (LEAF) with sub-meter spatial resolution. The Brillouin frequency shift is measured using Brillouin optical time-domain analysis (BOTDA) with differential pulse-width pair technique, while the spectrum shift of the R...
متن کاملMilliKelvin resolution in cryogenic temperature distributed fibre sensing based on coherent Rayleigh scattering
The response of a distributed temperature sensor based on coherent Rayleigh scattering is experimentally studied in the temperature range from 77 K up to 300 K, using fibres with standard and ORMOCER coating. A precise and absolute frequency scan is performed to obtain the best temperature resolution that turns out to be in the mK range. Experimental results point out that heating and cooling p...
متن کاملHydrogen bond dynamics in water studied by depolarized Rayleigh scattering
2014 We measured the depolarized Rayleigh light scattering by water from 80°C down to 17°C. The spectra obtained could be analysed into two lines, a broad and a sharp one. From the sharp line we deduced a relaxation time which can be interpreted as a reorientational time due to rotations. The broad line gives a relaxation time which is Arrhenius temperature dependent, with an activation energy ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Applied Physics Letters
سال: 2012
ISSN: 0003-6951,1077-3118
DOI: 10.1063/1.4712592