Improved Y2O3-ZrO2 waveguide fiber optic sensor for measuring gas-flow temperature above 2000 degrees Celsius

Limin Tong; Linhua Ye; Jingyi Lou; Zhongping Shen; Yonghang Shen; Eric Mazur

doi:10.1117/12.456069

14 February 2002 Improved Y₂O₃-ZrO₂ waveguide fiber optic sensor for measuring gas-flow temperature above 2000 degrees Celsius

Limin Tong, Linhua Ye, Jingyi Lou, Zhongping Shen, Yonghang Shen, Eric Mazur

Author Affiliations +

Proceedings Volume 4578, Fiber Optic Sensor Technology and Applications 2001; (2002) https://doi.org/10.1117/12.456069
Event: Environmental and Industrial Sensing, 2001, Boston, MA, United States

Abstract

Although Y₂O₃-ZrO₂ fiber-optic sensor has been developed for contact measurement of temperature higher than 2000 degree(s)C, its performance is not as good as that of sapphire fiber-optic sensor below 1900 degree(s)C due to the large optical loss of the Y₂O₃-ZrO₂ fiber. In order to improve the Y₂O₃-ZrO₂ fiber-optic sensor for ultra-high-temperature applications, in this work, based on a newly developed rectangular Y2O3-ZrO2 single-crystal waveguide with much lower optical loss, an improved Y₂O₃-ZrO₂ waveguide-fiber-optic sensor has been developed. The sensor has been tested up to near 2300 degree(s)C, we estimate that, the improved sensor has similar performance as the sapphire fiber-optic sensor in accuracy and resolution, except the disadvantage of relatively short waveguide. In addition, in this work, instead of the previous volatile and toxic BeO-coated probe, we use a multi-ions-doped sensor head, which is much stable and safe.

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Limin Tong, Linhua Ye, Jingyi Lou, Zhongping Shen, Yonghang Shen, and Eric Mazur "Improved Y₂O₃-ZrO₂ waveguide fiber optic sensor for measuring gas-flow temperature above 2000 degrees Celsius", Proc. SPIE 4578, Fiber Optic Sensor Technology and Applications 2001, (14 February 2002); https://doi.org/10.1117/12.456069

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