| Zugriffsnummer | 25784 |
| Dokumenttyp | Konferenzartikel in Zeitschrift |
| Peer Review | unbekannt |
| Sprache | Englisch |
| Titel | Monochromator-based absolute calibration of radiation thermometers |
| Autor(in); Institution |
Keawprasert, Thada; 7.3, Detektorradiometrie und Strahlungsthermometrie, PTB-Berlin
Anhalt, Klaus; 7.3, Detektorradiometrie und Strahlungsthermometrie, PTB-Berlin
Taubert, Richard Dieter; 7.3, Detektorradiometrie und Strahlungsthermometrie, PTB-Berlin
Abd El Mageed, Alaa Eldin; 4.1, Photometrie und angewandte Radiometrie, PTB-Braunschweig
Sperling, A.; 4.1, Photometrie und angewandte Radiometrie, PTB-Braunschweig
Hartmann, Jürgen; 7.3, Detektorradiometrie und Strahlungsthermometrie, PTB-Berlin
|
| Quelle/Jahr | International Journal of Thermophysics: 32 (2011), 7/8, 1697 - 1706 |
| ISSN | 0195-928X (PRINT) ; 1572-9567 (ONLINE) |
| DOI | |
| Konferenzangaben | TEMPMEKO & ISHM 2010, Portoroz, 31 May - 04 June, 2010, Slovenia |
| Zusammenfassung | Filter radiometers with interference filters are used for a long time at PTB for measuring thermodynamic temperatures in irradiance mode. Recently these filter radiometers have been applied to measure indirectly the thermodynamic temperature of small aperture hightemperature fixed-points with uncertainties significantly lower than those achievable according to ITS-90 methods. Direct measurements of the thermodynamic temperatures of these fixedpoint with small apertures require imaging systems. For these imaging systems the absolute responsivity must be calibrated. In literature integrating spheres have been used as a uniform extended source together with tuneable lasers for the absolute radiance calibration. To cover a wide wavelength range, the laser-based method requires a series of tuneable lasers to measure the absolute responsivity directly or a single laser line near the centre wavelength of the radiation thermometer in combination with the relative result from the monochromator based method. However, the small bandwidths of most laser systems can introduce large uncertainties due to interference effects at the optical elements of the radiation thermometers. This effect is absent in the broad band monochromator-based method. In this paper the monochromator based technique combined with an integrating sphere is used for an absolute calibration of a focussing system. This paper will describe the set-up and preliminary results of measurements obtained both, at the monochromator based spectral radiance comparator, and the tunable laser in photometry (TULIP) facility of PTB. |
Zitierung
Keawprasert, T., Anhalt, K., Taubert, R. D., Abd El Mageed, A. E., Sperling, A., & Hartmann, J. (2011). Monochromator-based absolute calibration of radiation thermometers. International Journal of Thermophysics, 32(7/8), 1697–1706. https://doi.org/10.1007/s10765-011-1031-x