Near-infrared fiber optic temperature sensor

Christian Schoen

doi:10.1117/12.2321952

1 December 1991 Near-infrared fiber optic temperature sensor

Christian Schoen

Author Affiliations +

Proceedings Volume 1584, Fiber Optic and Laser Sensors IX; (1991) https://doi.org/10.1117/12.2321952
Event: OE Fiber, 1991, Boston, MA, United States

Abstract

A series of new fiber optic temperature sensors is proposed. The new design uses the fluorescent emission amplitude of inorganic ions doped in a host matrix in the near infrared region as the temperature determining method and graded index fiber optics as the transmission medium. Four materials are investigated: Er³⁺:Glass; Cr³⁺, Er³⁺, Y₃Sc₂Ga₃O₁₂; Nd³⁺:Gd₃Sc₂Al₃O₁₂; and Nd³⁺:Glass. Feasibility in the design of a 10 km length point sensor with an accuracy of ±0.2 °C between 0°C and 300°C is presented.

Citation Download Citation

Christian Schoen "Near-infrared fiber optic temperature sensor", Proc. SPIE 1584, Fiber Optic and Laser Sensors IX, (1 December 1991); https://doi.org/10.1117/12.2321952

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