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Related Experiment Video

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Laser-Induced Fluorescence Emission L.I.F.E. as Novel Non-Invasive Tool for In-Situ Measurements of Biomarkers in Cryospheric Habitats
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3-D ice shape measurements using mid-infrared laser scanning.

Xiaoliang Gong, Stephan Bansmer

    Optics Express
    |April 4, 2015
    PubMed
    Summary

    A novel mid-infrared (MIR) laser scanning method accurately measures 3-D ice shapes, including clear, rime, and mixed ice, and supercooled water. This technique effectively captures ice accretion evolution on airfoils.

    Area of Science:

    • Physics
    • Materials Science
    • Engineering

    Background:

    • Accurate 3-D ice shape measurement is crucial for understanding ice accretion.
    • Traditional methods may have limitations in characterizing various ice types and dynamic growth processes.

    Purpose of the Study:

    • To propose and validate a general approach for measuring 3-D ice shapes using mid-infrared (MIR) laser scanning.
    • To demonstrate the capability of MIR laser scanning for clear ice, rime ice, mixed ice, and supercooled water.
    • To track the dynamic evolution of ice accretion on an airfoil.

    Main Methods:

    • Implementation and verification of an MIR laser point scanning technique on glass and clear ice.
    • Development and validation of an efficient MIR laser line scanning method for various models.

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  • Sequential MIR laser line scans to monitor continuous ice accretion on an airfoil in an icing wind tunnel.

    • Main Results:

    • MIR laser scanning effectively measures 3-D ice shapes across different ice compositions.
    • The technique accurately captures the ice growth process and shape evolution.
    • Results show good agreement with traditional visible laser scanning methods on replicated ice shapes.

    Conclusions:

    • MIR laser scanning offers a versatile and accurate method for 3-D ice shape metrology.
    • This technique is suitable for studying ice accretion phenomena, including dynamic growth.
    • The non-invasive nature and broad applicability make MIR scanning a valuable tool in icing research.