Multipoint Temperature Monitoring Based on a Regenerated Fiber Bragg Grating Temperature Sensor Array in Copper Casting

被引：3

作者：

Bian, Qiang ^{[1
,2
]}

Bauer, Constantin ^{[3
]}

Stadler, Andrea ^{[1
]}

Jakobi, Martin ^{[2
]}

Koch, Alexander W. ^{[2
]}

Roths, Johannes ^{[1
]}

机构：

[1] Munich Univ Appl Sci, Photon Lab, Lothstr 34, D-80335 Munich, Germany

[2] Tech Univ Munich, Inst Measurement Syst & Sensor Technol, Theresienstr 90, D-80333 Munich, Germany

[3] Tech Univ Munich, Met Forming & Casting, Walther Meissner Str 4, D-85748 Garching, Germany

来源：

SENSORS AND SMART STRUCTURES TECHNOLOGIES FOR CIVIL, MECHANICAL, AND AEROSPACE SYSTEMS 2021 | 2021年 / 11591卷

关键词：

Casting; regenerated fiber Bragg grating; high-temperature sensing; ALUMINUM; SOLIDIFICATION;

D O I：

10.1117/12.2588600

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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 degrees C. A temperature calibration function up to 800 degrees C was obtained experimentally and was linearly extended to 1200 degrees 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 degrees 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.

引用

页数：6

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