Liquid metals surface temperature fields measurements with a two-colour pyrometer

被引：23
|
作者：
Monier, Romain [1 ,2 ]
Thumerel, Francois [1 ]
Chapuis, Julien [1 ]
Soulie, Fabien [2 ]
Bordreuil, Cyril [2 ]
机构：
[1] AREVA NP, Ctr Tech, Paris, France
[2] Univ Montpellier, Lab Mecan & Genie Civil, Montpellier, France
来源：
MEASUREMENT | 2017年 / 101卷
关键词：
Liquid metals; Two-colour pyrometer; Temperature fields; Solidification front; Laser melting; Thermography; PULSE-HEATING TECHNIQUE; MRT EMISSIVITY MODELS; RADIATION THERMOMETRY; RADIANCE TEMPERATURES; SPECTRAL EMISSIVITY; MELTING-POINT; IRON;
D O I：
10.1016/j.measurement.2016.12.031
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The paper presents an apparatus to measure surface temperature distribution of liquid metals during fusion processes. The apparatus is based on dual wavelength radiation thermometry and is designed to measure temperature from 1500 to 3000 K. The pyrometer is based on standard optical parts and industrial CCD cameras. Uncertainties are analysed on the base of the radiometric equations. To insure relative precision in the measurement, a calibration procedure is conducted on tungsten ribbon with known emissivity in the temperature range. This procedure is also used to discuss the influence of wavelength couples. To conclude, experimental measurements on pure laser melted materials are conducted to assess the validity of the apparatus and methodology. (C) 2016 Published by Elsevier Ltd.
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页码：72 / 80
页数：9
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