Metrological Characterization of a High-Temperature Hybrid Sensor Using Thermal Radiation and Calibrated Sapphire Fiber Bragg Grating for Process Monitoring in Harsh Environments

Eisermann, René; Krenek, Stephan; Habisreuther, T.; Ederer, P.; Simonsen, Sigurd; Mathisen, Helge; Elsmann, Tino; Edler, Frank; Schmid, Daniel; Lorenz, Adrian; Andreas Falnes Olsen, Åge

doi:10.3390/s22031034

Public

Metrological Characterization of a High-Temperature Hybrid Sensor Using Thermal Radiation and Calibrated Sapphire Fiber Bragg Grating for Process Monitoring in Harsh Environments

Published in Sensors • Jan 28, 2022

Authors:

René Eisermann

Stephan Krenek

T. Habisreuther

Abstract

Fiber Bragg gratings inscribed in single crystalline multimode sapphire fibers (S-FBG) are suitable for monitoring applications in harsh environments up to 1900 °C. Despite many approaches to optimize the S-FBG sensor, a metrological investigation of the achievable temperature uncertainties is still...

Subject

Fiber Bragg grating

Thermocouple

Materials science

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