Sapphire fiber Bragg gratings for high temperature and dynamic temperature diagnostics

被引：102

作者：

Habisreuther, Tobias ^{[1
]}

Elsmann, Tino ^{[1
]}

Pan, Zhiwen ^{[1
]}

Graf, Albrecht ^{[1
]}

Willsch, Reinhardt ^{[1
]}

Schmidt, Markus A. ^{[1
,2
,3
,4
]}

机构：

[1] Leibniz Inst Photon Technol, D-07745 Jena, Germany

[2] Univ Jena, Abbe Ctr Photon, D-07743 Jena, Germany

[3] Univ Jena, Fac Phys, D-07743 Jena, Germany

[4] Otto Schott Inst Mat Res, D-07743 Jena, Germany

来源：

APPLIED THERMAL ENGINEERING | 2015年 / 91卷

关键词：

High temperature sensor; Fiber Bragg gratings; Sapphire fibers; High temperature diagnostics; Dynamic temperature diagnostics; FEMTOSECOND LASER-RADIATION; PYROMETER; SENSOR; SINGLE; DRIFT;

D O I：

10.1016/j.applthermaleng.2015.08.096

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This paper reports on a new kind of temperature sensor operating over an extremely large temperature range at high monitoring speeds. The sensor utilizes fiber Bragg gratings inscribed into multimode single crystalline Sapphire fibers, basically providing temperature control via an optical reflection signal. The gratings operate up to 1900 degrees C, which is the highest temperature determined using Bragg grating so far, and allow signal processing with a temperature resolution better than +/- 2 K. The sensor uniquely provides fast dynamic temperature monitoring at an unprecedented rate of 20 Hz. Overall, fiber Bragg grating inside Sapphire fibers provide a new base for precise high-temperature measurement with key advantages such as signal multiplexing, large temperature bandwidth and insensitivity to electromagnetic fields. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：860 / 865

页数：6

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