Multipoint temperature monitoring based on a regenerated fiber Bragg grating temperature sensor array in copper casting

Qiang Bian; Constantin Bauer; Andrea Stadler; Martin Jakobi; Alexander W. Koch; Johannes Roths

doi:10.1117/12.2588600

22 March 2021 Multipoint temperature monitoring based on a regenerated fiber Bragg grating temperature sensor array in copper casting

Qiang Bian, Constantin Bauer, Andrea Stadler, Martin Jakobi, Alexander W. Koch, Johannes Roths

Author Affiliations +

Proceedings Volume 11591, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2021; 115910U (2021) https://doi.org/10.1117/12.2588600
Event: SPIE Smart Structures + Nondestructive Evaluation, 2021, Online Only

Abstract

The temperature distribution during a metal casting process is important because it influences structural properties and residual stresses of the casted part. In this paper, we report on multipoint temperature monitoring based on a regenerated fiber Bragg grating (RFBG) array during a copper casting process, with a maximum temperature exceeding 1100°C. A temperature calibration function up to 800°C was obtained experimentally and was linearly extended to 1200°C. According to the experimental results, the temperature information from an RFBG temperature sensor agreed well with that from a thermocouple that was located close to the respective RFBG sensor element, even at temperatures above 1100°C. With the RFBG temperature sensor array in a single fiber, the temperature distribution and its temporal development were obtained, which can be used to better understand the copper casting process and improve the casting mold design.

Conference Presentation

Citation Download Citation

Qiang Bian, Constantin Bauer, Andrea Stadler, Martin Jakobi, Alexander W. Koch, and Johannes Roths "Multipoint temperature monitoring based on a regenerated fiber Bragg grating temperature sensor array in copper casting", Proc. SPIE 11591, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2021, 115910U (22 March 2021); https://doi.org/10.1117/12.2588600

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