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Nanorod-cladding sapphire fiber-based thermometer for extreme condition applications

Authors :
Sunday Abraham
Zijian Zhao
Qinming Zhang
Jingjing Qian
Matthew Werner
Meng Lu
Randy Petty
Source :
Optical Fiber Sensors Conference 2020 Special Edition.
Publication Year :
2021
Publisher :
Optica Publishing Group, 2021.

Abstract

This paper reports a new optical fiber thermometer (OFT) for ultra-high temperature measurement under extreme environments, such as in molten steels. This sapphire fiber-based OFT was designed by coating the sapphire fiber core with a nanorod cladding material, which is then housed inside the ceramic tube, the cladded sapphire fiber can collect thermal emissions from ceramic tube and couple the emission to a near-infrared spectrometer with minimal loss. After dipping OFT into molten steel, real-time temperature can be determined by analyzing the emission spectra using a polynomial curve fitting or a machine learning-based classification algorithm.

Details

Database :
OpenAIRE
Journal :
Optical Fiber Sensors Conference 2020 Special Edition
Accession number :
edsair.doi...........deb6b082747ddf39e4dcf5c8cdd0fa91
Full Text :
https://doi.org/10.1364/ofs.2020.w4.22