
Proceedings Paper
A sapphire fiber thermometer for high temperature measurement in tundish based on the fast Fourier transformFormat | Member Price | Non-Member Price |
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Paper Abstract
A sapphire fiber thermometer for high temperature measurement is described. The mechanism of the fluorescence
temperature measurement is based on the basic physical phenomenon of photoluminescence. The so-called
photoluminescence essentially is the superthermal radiation luminescence when some materials are stimulated by
ultraviolet, visible or a certain form of the infrared electromagnetic radiation. The fluorescence lifespan and fluorescence
strength of all fluorescence materials will imply some temperature correlation within some homologous temperatures.
It uses a specially grown sapphire fiber as thermometer probe. The end part of the sapphire fiber is doped with Cr3+ion
by means of the laser heat pedestal growth (LHPG) method and coated with some high radiant material to constitute a
mini fiber cavity. The fluorescence thermal probe offers the advantages of a compact structure, a high performance and
the ability to withstand high temperatures in detection. According to the surface temperature, we can obtain the inner
temperature by the temperature field. It can be used to measure the steel fluid of the tundish in continuous cast steel
machines. An experimental system of the thermometer and the preliminary experimental results are presented.
Paper Details
Date Published: 31 December 2008
PDF: 6 pages
Proc. SPIE 7130, Fourth International Symposium on Precision Mechanical Measurements, 71301A (31 December 2008); doi: 10.1117/12.819584
Published in SPIE Proceedings Vol. 7130:
Fourth International Symposium on Precision Mechanical Measurements
Yetai Fei; Kuang-Chao Fan; Rongsheng Lu, Editor(s)
PDF: 6 pages
Proc. SPIE 7130, Fourth International Symposium on Precision Mechanical Measurements, 71301A (31 December 2008); doi: 10.1117/12.819584
Show Author Affiliations
Gui-mei Wang, Hebei Univ. of Engineering (China)
Dong-sheng Wang, Hebei Univ. of Engineering (China)
Dong-sheng Wang, Hebei Univ. of Engineering (China)
Wei-wei Pan, Hebei Univ. of Engineering (China)
Published in SPIE Proceedings Vol. 7130:
Fourth International Symposium on Precision Mechanical Measurements
Yetai Fei; Kuang-Chao Fan; Rongsheng Lu, Editor(s)
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