.png){kind=icon}
.png){kind=icon}
Return
DWI-Assisted BOTDA for Dynamic Sensing
.png){kind=icon}
PRE
AI
DOI：10.1109/JLT.2021.3068071.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
A co-propagating dual-wave interferometer- assisted Brillouin optical time domain analysis (DWI-BOTDA) integrated sensing system is proposed and experimentally demonstrated for high sampling rate dynamic sensing. Fast dynamic strain measurement is achieved by the DWI based on analyzing the relative phase variation between two co-propagating light waves with significantly improved dynamic strain measurement range (DSMR). Meanwhile, the BOTDA with high spatial resolution is employed to locate the dynamic events accurately. In the experiment, the enhancements on the DSMR and sensing stability in the DWI are validated. Then, the DWI-BOTDA is implemented to measure periodical mechanical vibration over 2 km sensing range with 10 kHz sampling rate and 2 m spatial resolution.
Keywords:
Strain
Optical fiber sensors
Data acquisition
Vibrations
Optical interferometry
Strain measurement
Optical fiber polarization
Brillouin optical time domain analysis (BOTDA)
distributed optical fiber sensor
stimulated Brillouin scattering
AI Summary
Key information extracted from the uploaded paper, including a brief overview, abstract, background, key highlights, visual analysis, and future outlook.
Journal
IF:
4.8
Papers:
1.7W
Citations:
3.8W