| Autor: |
Luigi Santamaria Amato, Mario Siciliani de Cumis, Giuseppe Bianco, Raffaele Pastore, Pablo Cancio Pastor |
| Jazyk: |
angličtina |
| Rok vydání: |
2019 |
| Předmět: |
|
| Zdroj: |
New Journal of Physics, Vol 21, Iss 11, p 113008 (2019) |
| Druh dokumentu: |
article |
| ISSN: |
1367-2630 |
| DOI: |
10.1088/1367-2630/ab4d07 |
| Popis: |
Experimental methods for primary thermometry, after Kelvin unit redefinition on May 2019, become based on a known value of the Boltzmann constant rather than by measuring temperature with respect to a reference point. In this frame, we propose linestrength ratio thermometry (LRT) as a candidate method for primary thermometry in the 9–700 K temperature range. Temperature accuracies at the ppm level are prospected for LRT applied to optical transitions of the CO molecule in the range 80–700 K and of a rare-earth-doped crystal in the 9–100 K one. Future implementations of this technique can contribute to measure the calibration-discrepancies in the ITS-90 metrological scale of thermodynamic temperature which can have a measurable impact in applications ranging from fundamental-physics to meteorology and climatology. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
