22 May 2015 Phosphor-based fiber optic temperature sensors for harsh environments
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A novel approach to the implementation of a fiber optic thermometer with high temperature capability is described. It utilizes a phosphor in the form of a microsphere. With this design, a fiber optic thermal probe having a useful range of 100-1,100 °C has been demonstrated using an LED as the excitation source. From previous work, we believe that it should be possible to extend the maximum operating temperature of such a device to at least 1,400 °C if a laser diode is employed as the excitation source.
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Nicholas Djeu, Nicholas Djeu, Yutaka Shimoji, Yutaka Shimoji, } "Phosphor-based fiber optic temperature sensors for harsh environments", Proc. SPIE 9467, Micro- and Nanotechnology Sensors, Systems, and Applications VII, 94671J (22 May 2015); doi: 10.1117/12.2179687; https://doi.org/10.1117/12.2179687

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