| Zugriffsnummer | 32218 |
| Dokumenttyp | Konferenzartikel |
| Peer Review | unbekannt |
| Sprache | Englisch |
| Titel | Precision 10:1 capacitance ratio measurement using a Josephson impedance bridge |
| Autor(in); Institution |
Palafox Gamir, Luis; 2.6, Elektrische Quantenmetrologie, PTB-Braunschweig
Behr, Ralf; 2.6, Elektrische Quantenmetrologie, PTB-Braunschweig
Schurr, Jürgen; 2.6, Elektrische Quantenmetrologie, PTB-Braunschweig
Kibble, Bryan P.; Independent consultant, Hampton, UK
|
| Quelle/Jahr | 29th Conference on Precision Electromagnetic Measurements digest:(2014), 232 - 233 |
| Availability | [CD-ROM] ; file name: 116.pdf |
| ISBN | 978-1-4799-2478-3 (CD) ; 978-1-4799-2479-0 |
| Verlag | Piscataway, NJ: IEEE Operations Center |
| Konferenzangaben | Conference on Precision Electromagnetic Measurements (CPEM) 2014, Rio de Janeiro, 24-29, August, 2014, Brazil |
| Freie Schlagworte | Josephson array ; programmable Josephson system ; impedance |
| Zusammenfassung | Josephson impedance bridges have been reported to provide uncertainties close to that from the best conventional bridges when comparing 1:1 impedance ratios. For a 10:1 capacitance ratio (100 pF to 10 pF) a type A uncertainty accuracy of a few parts in 107 has been achieved with 1-V programmable Josephson arrays. The accuracy can be significantly improved when using 10-V Josephson arrays. Preliminary measurements are also presented with type A uncertainties at the level of parts in 108 (k = 1). |
