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Optical Frequency Domain Reflectometry-based High-performance Distributed Sensing Empowered By A Data And Physics-driven Neural Network.

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Optical Frequency Domain Reflectometry-based High-performance Distributed Sensing Empowered By A Data And Physics-driven Neural Network.

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Optical frequency domain reflectometry-based high-performance distributed sensing empowered by a data and

Zhaopeng Zhang, Wei Peng, Osamah Alsalman

|November 14, 2024

View abstract on PubMed

Summary

This summary is machine-generated.

This study presents a novel neural network-enhanced Optical Frequency Domain Reflectometry (OFDR) system for distributed strain sensing. The system achieves unprecedented sub-millimeter spatial and sub-microstrain resolution over a 140-meter range.

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Area of Science:

Photonics and Optical Sensing
Materials Science and Engineering
Artificial Intelligence in Engineering

Background:

Optical Frequency Domain Reflectometry (OFDR) offers high spatial resolution for distributed strain sensing.
Simultaneously achieving high spatial resolution, high strain resolution, and large sensing ranges in OFDR systems is challenging.
Existing OFDR systems face limitations in balancing resolution and range.

Purpose of the Study:

To introduce and experimentally demonstrate a novel data and physics-driven neural network-empowered OFDR system.
To achieve high-performance distributed sensing with simultaneous high spatial and strain resolution over an extended range.
To overcome the limitations of conventional OFDR systems in achieving multi-parameter optimization.

Main Methods:

Development of a neural network integrated with OFDR principles.
Implementation of a data and physics-driven approach for sensor signal processing.
Experimental validation of the proposed system's performance metrics.

Main Results:

Demonstrated sub-microstrain (0.91 μɛ) strain resolution.
Achieved sub-millimeter (0.857 mm) spatial resolution.
Successfully operated across a 140-meter sensing range, combining all performance metrics.

Conclusions:

The developed neural network-empowered OFDR system represents a significant advancement in distributed sensing.
This work is the first experimental demonstration of OFDR achieving sub-millimeter spatial and sub-μɛ strain resolution over a >100m range.
The findings open new avenues for ultra-high-performance optical fiber sensing for smart industrial applications.