Dual-wavelength reflectance-ratio (DWR) method applied to high-temperature metals
| Autor: | Hidekazu Kobatake, Yu Yamaguchi, Yoshiro Yamada, Yuma Kurokawa, Hiroyuki Fukuyama, N. Sasajima |
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| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Materials science business.industry chemistry.chemical_element Atmospheric temperature range 01 natural sciences Temperature measurement Copper law.invention 010309 optics Wavelength Optics chemistry Thermocouple law 0103 physical sciences Reflection (physics) business Platinum Pyrometer |
| Zdroj: | 2017 56th Annual Conference of the Society of Instrument and Control Engineers of Japan (SICE). |
| DOI: | 10.23919/sice.2017.8105614 |
| Popis: | Applicability of the dual-wavelength reflectance-ratio (DWR) method to high-temperature spherical metals was investigated. Solid nickel, copper and platinum spheres were used as samples for establishing the experimental setup and procedure. The samples were heated inductively and their temperatures were monitored with a thermocouple attached to the sample. Their radiances were measured using a pyrometer at two different wavelengths, 900 and 1350 nm. Their temperatures were calculated by analyzing the sample radiances with and without reflection of an auxiliary light source. The obtained temperatures by the DWR method agreed with the temperatures measured by a thermocouple within 50 K in the temperature range from 850 to 1600 K. |
| Databáze: | OpenAIRE |
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