| Zugriffsnummer | 16816 |
| Dokumenttyp | Konferenzartikel |
| Sprache | Englisch |
| Titel | 3He vapour-pressure measurements at PTB |
| Autor(in); Institution |
Engert, Jost; 7.32, Tieftemperaturmetrologie, PTB-Berlin
Fellmuth, Bernd; 7.32, Tieftemperaturmetrologie, PTB-Berlin
|
| Quelle/Jahr | Temperature - its measurement and control in science and industry: 1 (2003), 113 - 118 |
| Schriftenreihe | AIP Conference Proceedings: 684 |
| Herausgeber(in) |
Ripple et. al., D. C.; American Institute of Physics
|
| ISBN | 0-7354-0153-5 |
| DOI | |
| Verlag | Melville, NY: American Inst. of Physics |
| Konferenzangaben | TEMPERATURE 2002, The 8th Symposium: Its Measurement and Control in Science and Industry, Chicago, Illinois, 21-24, October, 2002, USA |
| Klassifikationscode | PACS: 07.20.Dt |
| Zusammenfassung | The paper reports on extensive 3He vapour-pressure measurements carried out at PTB. To investigate in detail the main error sources, three different types of vapour-pressure cells and three different arrangements of pressure-sensing tubes were used. In the temperature range from 0.65 K to 1.2 K, the repeatability of the realisation of 3He vapour-pressure temperatures T90 according to the International Temperature Scale of 1990, ITS-90, over eight runs was of order of 0.12 mK, whereas the repeatability over four runs using one and the same, optimised cryogenic set-up was of order of 0.03 mK. Below 1 K, the T90 realisation is compared to data available in literature via wire scales. |
