Results 111 to 120 of about 1,583 (160)

High-Resolution OFDR with All Grating Fiber Combining Phase Demodulation and Cross-Correlation Methods. [PDF]

Sensors (Basel)
Liu Y, Luo Y, Xiao X, Yan Z, Qin Y, Shen Y, Wang F.   +6 more
europepmc   +1 more source

Wall Thinning Monitoring in Boiler U-Bends: A Review and Future Prospects with Fiber Optic Sensing. [PDF]

Micromachines (Basel)
Madan A, Jiang W, Wang Y, Yang Y, Hao J, Shum PP.   +5 more
europepmc   +1 more source

Seamless integration of distributed acoustic sensing and passive optical networks for human intrusion monitoring. [PDF]

Commun Eng
Tang R, Rao Y, Wu H, Geng Y, Jing Q, Xie L, He P, Li Z, Zou S, Hua T, Zheng S, Wu Y.   +11 more
europepmc   +1 more source

Controllable diffusion framework for imbalanced Phi OTDR events classification. [PDF]

Sci Rep
Zhu B, Cheng W, Wen S, Ma Y, Zhao Y, Guo J, Lu Y, Zhang Z.   +7 more
europepmc   +1 more source

Coaxial Cable Distributed Strain Sensing: Methods, Applications and Challenges. [PDF]

Sensors (Basel)
King S, Jombo G, Simpson O, Duan W, Bowles A.   +4 more
europepmc   +1 more source

Dynamic optical frequency domain reflectometry

Optics Express, 2014
We describe a dynamic Optical Frequency Domain Reflectometry (OFDR) system which enables real time, long range, acoustic sensing at high sampling rate. The system is based on a fast scanning laser and coherent detection scheme. Distributed sensing is obtained by probing the Rayleigh backscattered light. The system was tested by interrogation of a 10 km
Avishay Eyal
exaly   +3 more sources

Proposal of Brillouin optical frequency-domain reflectometry (BOFDR)

Optics Express, 2016
We demonstrate a Brillouin optical frequency-domain reflectometry (BOFDR) technique, which can measure the strain and/or temperature along an optical fiber with one-end access, by detecting the spontaneous Brillouin scattering from a sinusoidally modulated pump light.
Aldo Minardo, Romeo Bernini, R Ruiz-Lombera   +2 more
exaly   +4 more sources

Doppler optical frequency domain reflectometry for remote fiber sensing

Optics Express, 2021
Coherent optical frequency domain reflectometry has been widely used to locate static reflectors with high spatial resolution. Here, we present a new type of Doppler optical frequency domain reflectometry that offers simultaneous measurement of the position and speed of moving objects.
Abhinav Sharma, Jasper Podschus, N Y Joly   +2 more
exaly   +4 more sources