Liquid metals surface temperature fields measurements with a two-colour pyrometer
| Autor: | Romain Monier, François Thumerel, Julien Chapuis, Cyril Bordreuil, Fabien Soulié |
|---|---|
| Přispěvatelé: | Laboratoire de Mécanique et Génie Civil (LMGC), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Assemblages Soudés (AS), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), AREVA NP - Centre Technique (FRANCE) |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Materials science
02 engineering and technology Radiation 01 natural sciences law.invention [SPI.MECA.MEFL]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph] 010309 optics Two-colour pyrometer Optics law 0103 physical sciences Calibration Emissivity [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] Electrical and Electronic Engineering Instrumentation Pyrometer Temperature fields business.industry Applied Mathematics Atmospheric temperature range 021001 nanoscience & nanotechnology Condensed Matter Physics Laser Wavelength Thermography Laser melting Solidification front 0210 nano-technology business [SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing Liquid metals |
| Zdroj: | Measurement-Journal of the International Measurement Confederation (IMEKO) Measurement-Journal of the International Measurement Confederation (IMEKO), Elsevier, 2017, 101, pp.72-80. ⟨10.1016/j.measurement.2016.12.031⟩ |
| ISSN: | 0263-2241 |
| DOI: | 10.1016/j.measurement.2016.12.031⟩ |
| Popis: | International audience; 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. |
| Databáze: | OpenAIRE |
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