| Zugriffsnummer | 52258 |
| Dokumenttyp | Konferenzartikel |
| Sprache | Englisch |
| Titel | Josephson-based calibration method for small-current calibration |
| Autor(in); Institution |
Skaar, Lars Kristian; Justervesenet, Kjeller, NORWAY
|
| Quelle/Jahr | 2024 Conference on Precision Electromagnetic Measurements (CPEM):(2024) |
| ISSN | 2160-0171 (online) ; 0589-1485 (PoD) |
| ISBN | 979-8-3503-6104-9 (online) ; 979-8-3503-6105-6 (PoD) |
| DOI | |
| Verlag | Piscataway, NJ: IEEE |
| Konferenzangaben | Conference on Precision Electromagnetic Measurements (CPEM 2024), Denver, Colo., 08-11, July, 2024, USA |
| Freie Schlagworte | Current measurement ; Josephson effect ; Josephson junctions ; measurement techniques ; metrology ; precision measurements |
| Zusammenfassung | This paper describes a new approach to calibrate small-current instrumentation based on Josephson voltage standards. Here, we have calibrated the 2-nA range of a Keysight B2987B electrometer by activating 2-12 Josephson junctions in a programmable Josephson voltage standard, and setting the calibration current by running the realized dc voltage through a 1 MÙ resistance standard to generate highly stable dc current levels between 290 pA - 1.74 nA. The results show a consistency in accuracy within 3 pA and repeatability within 0.9 pA for the selected current levels. |
| Themenbereich der Metrologie | Elektrizität und Magnetismus |
Zitierung
Karlsen, B., Skaar, L. K., Behr, R., & Kieler, O. (2024). Josephson-based calibration method for small-current calibration. Conference on Precision Electromagnetic Measurements (CPEM 2024), Denver, Colo., 08-11, July, 2024, USA. https://doi.org/10.1109/CPEM61406.2024.10646162