| Zugriffsnummer | 29773 |
| Dokumenttyp | Zeitschriftenartikel |
| Sprache | Englisch |
| Titel | High-precision voltage measurements: superconductive electronics in metrology |
| Autor(in); Institution |
Kohlmann, Johannes; 2.4, Quantenelektronik, PTB-Braunschweig
|
| Quelle/Jahr | Fluxonics newsletter:(2013), 2, 4 - 5 |
| ISSN | NO-ISSN |
| Verlag | Braunschweig: Fluxonics e.V. |
| Zusammenfassung | FLUXONICS is a society dedicated to superconductive electronics, an extraordinary electronics making exciting applications possible. Some applications have successfully been established in metrology, the science of precision measurements. The main important representative of a metrological application is the Josephson voltage standard. Its most remarkable characteristic is that it is a quantum standard, which enables the reference of the volt (the unit of electrical voltage) only to physical constants and a frequency. Superconductivity as a macroscopic quantum effect plays here an essential role. This article focuses on recent developments and the current status of Josephson voltage standards at the Physikalisch-Technische Bundesanstalt (PTB) in Germany. |
