Abstract
The radiation temperature scales of PTB and MIKES were compared in the range of 1570-2770 K using four filter radiometers of MIKES, one filter radiometer of PTB, and linear radiation thermometers of both MIKES and PTB. The agreement was partial: two filter radiometers and the linear radiation thermometer of MIKES agreed well with the equipment of PTB, while two filter radiometers deviated from the other equipment. To get a deeper understanding of the reasons of the deviation, the results were studied in terms of both temperature and radiance. The deviation was found constant in terms of radiance. A correction factor was calculated for the radiance level with help of a temperature fixed-point calibration. The use of the correction factor improved the results.
| Original language | English |
|---|---|
| Pages (from-to) | 183-189 |
| Number of pages | 7 |
| Journal | Measurement |
| Volume | 43 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2010 |
| MoE publication type | A1 Journal article-refereed |
Keywords
- Filter radiometer
- Intercomparison
- Linear radiation thermometer
- Radiation temperature scale