| Zugriffsnummer | 20033 |
| Dokumenttyp | Konferenzartikel in Zeitschrift |
| Sprache | Englisch |
| Titel | Vacuum Variable Low Temperature Blackbody VLTBB 100 [poster] |
| Autor(in); Institution |
Morozova, S.P.; All-Russian Research Institute for Optical and Physical Measurements (VNIIOFI), Moscow, RUSSIA
Parfentiev, N.A.; All-Russian Research Institute for Optical and Physical Measurements (VNIIOFI), Moscow, RUSSIA
Lisianskiy, B.E.; All-Russian Research Institute for Optical and Physical Measurements (VNIIOFI), Moscow, RUSSIA
Sapritskiy, V.I.; All-Russian Research Institute for Optical and Physical Measurements (VNIIOFI), Moscow, RUSSIA
Dovgilov, N.L.; All-Russian Research Institute for Optical and Physical Measurements (VNIIOFI), Moscow, RUSSIA
Melenevsky, U.A.; Institute for Low-temperature Physics and Engineering of NA of Science of Ukraine, Kharkov, UKRAINE
Gutschwager, Berndt; 7.3, Hochtemperatur- und Vakuumphysik, PTB-Berlin
Monte, Christian; 7.3, Hochtemperatur- und Vakuumphysik, PTB-Berlin
Hollandt, Jörg; 7.3, Hochtemperatur- und Vakuumphysik, PTB-Berlin
|
| Quelle/Jahr | International Journal of Thermophysics: 29 (2008), 1, 341 - 351 |
| ISSN | 0195-928X (PRINT) ; 1572-9567 (ONLINE) |
| DOI | |
| Verlag | Dordrecht: Springer |
| Konferenzangaben | Tempmeko 2007, Lake Louise, 21-25, May, 2007, Canada |
| Zusammenfassung | Black bodies are widely used as standard sources in radiometry and thermometry of non coherent optical radiation. The present state of the art of precision radiometry based on the vacuum variable low temperature blackbody source VLTBB 100 developed for the low background calibration facility in PTB is analyzed. This paper describes the Vacuum Variable Low Temperature Blackbody (VLTBB) constructed to serve as a highly stable reference source for calibration of blackbody sources in the temperature range from 100 K up to 450 K under medium-vacuum conditions (10-3 Pa ) and a medium-background environment (liquid-nitrogen-cooled shroud). The general concept and the design of the VLTBB 100 are given. The numerical investigation of the effective emissivity of the VLTBB 100 is performed by means of STEEP3 modeling software based on the Monte-Carlo algorithm. A description of the temperature control and measurement system of the VLTBB 100 is presented. Cooling of VLTBB 100 is performing by liquid nitrogen. Heating of the VLTBB 100 is performed by a two stages temperature control based on the rough Microomega CN77000 controller and the precision temperature controller “ Eurotherm 2604”. The thermal model of the radiator was constructed. As a result of the analysis it was shown that the system with chosen parameters achieves good stability. The controller EUROTHERM 2604, including three control loops was selected for precision temperature control of the radiator. As a result a system was constructed, in which a correction of a signal, measured by the controller, is performed according to the value of the precise resistance thermometers, which have an individual calibration traceable to ITS-90 and work under the classic 4-wire scheme. By this it was possible to increase stability of the blackbody temperature within 10 mK. The characteristics of the blackbody operating - now in PTB are described. Results of theoretical and experimental investigations are given. |
| Innovationscluster | Umwelt und Klima |
Zitierung
Morozova, S., Parfentiev, N., Lisianskiy, B., Sapritskiy, V., Dovgilov, N., Melenevsky, U., Gutschwager, B., Monte, C., & Hollandt, J. (2008). Vacuum Variable Low Temperature Blackbody VLTBB 100 [poster]. International Journal of Thermophysics, 29(1), 341–351. https://doi.org/10.1007/s10765-007-0355-z