| Zugriffsnummer | 35964 |
| Dokumenttyp | Konferenzartikel |
| Peer Review | unbekannt |
| Sprache | Englisch |
| Titel | Cable noise investigations for high-accuracy measurements of small direct currents |
| Autor(in); Institution |
Krause, Christian; 2.6, Elektrische Quantenmetrologie, PTB-Braunschweig
Scherer, Hansjörg; 2.6, Elektrische Quantenmetrologie, PTB-Braunschweig
Drung, Dietmar; 7.2, Kryophysik und Spektrometrie, PTB-Berlin
|
| Quelle/Jahr | CPEM 2016, Conference on Precision Electromagnetic Measurements: conference digest:(2016), 2 S. |
| Availability | [USB-Stick] ; file name: 123.pdf |
| ISBN | 978-1-4673-9134-4 ; 978-1-4673-9133-7 |
| Verlag | [s.l.]: IEEE |
| Konferenzangaben | Conference on Precision Electromagnetic Measurements (CPEM) 2016, Ottawa, 10-15, July, 2016, Canada |
| Freie Schlagworte | current measurement ; low-noise amplifiers ; measurement standards ; measurement uncertainty ; noise measurement |
| Zusammenfassung | Single-electron experiments may provide possible realizations of the future SI ampere if they are performed at high accuracy corresponding to 0.1 ppm uncertainty or better. However, excess noise in the cabling between the room temperature equipment and the cryogenic quantum current source, typically mounted inside a refrigerator setup, limits the achievable accuracy. We present amplifier tools for precise noise investigations and first results of measurements on different cable specimens as starting point for a systematic study on the topic. |
