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Rayleigh scattering-based single mode-graded index multimode-coreless fiber structure for distributed liquid

Yang Du, Chao Ye

    Optics Express
    |November 29, 2023
    PubMed
    Summary
    This summary is machine-generated.

    This study introduces a novel fiber optic sensor for precise liquid droplet detection. This safer alternative to electrochemical sensors enhances industrial safety and monitoring capabilities.

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    Area of Science:

    • Photonics and Sensor Technology
    • Industrial Monitoring Systems

    Background:

    • Liquid sensing is vital for industrial safety and efficiency.
    • Electrochemical sensors pose risks with hazardous liquids.
    • Optical fiber sensors offer a safer, corrosion-resistant alternative but lack spatial resolution for distributed detection.

    Purpose of the Study:

    • To develop a novel fiber optic sensing structure for precise, distributed liquid droplet detection.
    • To overcome the limitations of current sensors in detecting spills across multiple locations with high spatial resolution.

    Main Methods:

    • A novel single mode-graded index multimode-coreless fiber sensing structure was designed.
    • The structure was integrated with a distributed optical fiber sensing system.
    • The system's capability to detect and size liquid droplets was demonstrated.

    Main Results:

    • The novel fiber optic sensor successfully detected and estimated the size of four consecutive oil droplets with high precision.
    • The integrated system showed effective distributed liquid droplet detection capabilities.

    Conclusions:

    • The proposed fiber optic sensing structure provides an innovative solution for distributed liquid droplet detection.
    • This technology has significant potential for enhancing safety and operational optimization in various industrial liquid detecting applications.