Nanorod-cladding sapphire fiber for continuous temperature measurement in molten steel

2020 
This paper reports a new optical fiber thermometer (OFT) for temperature measurement under extreme environments, such as in molten steels. The OFT probe consists of a ceramic tube and a sapphire fiber, which is coated with a nanorod cladding layer. Installed inside the ceramic tube, the nanorod-cladding sapphire fiber can collect thermal emissions of the ceramic tube and couple the emission out of the OFT probe to a near-infrared spectrometer with minimal loss of photons. The molten steel temperature was determined by analyzing the emission spectra using a polynomial curve fitting or a machine learning-based classification algorithm.
    • Correction
    • Source
    • Cite
    • Save
    • Machine Reading By IdeaReader
    4
    References
    1
    Citations
    NaN
    KQI
    []