RESEARCH & ENGINEERING NOTES
UW-FBG research papers, application notes and technical explanations—organized for engineers who want to understand the method behind the measurement.
Featuring 6 research publications from China Three Gorges University and partner institutions, covering UW-FBG demodulation systems, sensing cables, and real-world applications.
A modularized UW-FBG demodulation system for field monitoring. Features 250 MSPS high-speed A/D acquisition, embedded FPGA-based hardware, and real-time 4-channel sensor array demodulation. Achieves 10km…
A low-power, high-sensitivity modular DAS demodulation system. Uses Zynq embedded circuits with 3×3 arctangent phase demodulation. Achieves
An OFDR demodulation system using adaptive Gaussian fitting. Features PSD thresholding and 3σ criterion for dynamic grating interval trimming. Achieves 1.95M gratings/second with
A distributed strain sensing cable based on FRP encapsulation for UW-FBG arrays. Achieves >99% strain transfer efficiency with 0.2m grating pitch. Hot-pultrusion manufactured 1.0mm FRP…
A stranded-structure DAS sensing cable with enhanced acoustic sensitivity. Achieves 77.3mrad/kPa at 100Hz and 83.23mrad/kPa average. Validated on 110m pipeline leak simulation.
A fault detection system combining fiber optic microphones and uwDAS cables for belt conveyor idlers. Achieves 350 rad/s phase change detection and 350× spectral energy…
Expert commentary, trends analysis, and deep dives into fiber optic sensing technology, industry developments, and emerging applications.
UW-FBG arrays provide high-density strain measurements along test piles.
Oil and gas production is becoming more complex. Deep reservoirs, high water cut, low resource density, frequent geological disturbances, increased water or CO₂ injection —…
A recent article in Science magazine has sent ripples through both the geoscience and security communities. Researchers have demonstrated that the same fiber optic cables…
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