High-temperature sensors based on thermal radiation integrative waveguides

Michel F. Sultan; Michael J. O'Rourke

doi:10.1117/12.255354

25 October 1996 High-temperature sensors based on thermal radiation integrative waveguides

Michel F. Sultan, Michael J. O'Rourke

Proceedings Volume 2839, Fiber Optic and Laser Sensors XIV; (1996) https://doi.org/10.1117/12.255354
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

Abstract

Blackbody radiation sensors are well known for measuring high temperature in harsh environments. Conventionally, these sensors require materials with high and stable emissivity. Any dimensional changes or shifts in the emissivity over the lifetime of the device would degrade sensor performance. This paper presents a new temperature sensing concept where thermal radiation is integrated over the length of an optical waveguide. Under some easily attainable conditions, it is shown that the new sensor output is independent of both the emissivity of the material and the length of the integrating waveguide.

Citation Download Citation

Michel F. Sultan and Michael J. O'Rourke "High-temperature sensors based on thermal radiation integrative waveguides", Proc. SPIE 2839, Fiber Optic and Laser Sensors XIV, (25 October 1996); https://doi.org/10.1117/12.255354

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