| Zugriffsnummer | 32260 |
| Dokumenttyp | Konferenzartikel |
| Sprache | Englisch |
| Titel | A compact 14-bit cryogenic current comparator |
| Autor(in); Institution |
Götz, Martin; 2.6, Elektrische Quantenmetrologie, PTB-Braunschweig
Pesel, Eckart; 2.6, Elektrische Quantenmetrologie, PTB-Braunschweig
Drung, Dietmar; 7.2, Kryophysik und Spektrometrie, PTB-Berlin
|
| Quelle/Jahr | 29th Conference on Precision Electromagnetic Measurements digest:(2014), 684 - 685 |
| Availability | [CD-ROM] ; file name: 342.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 | bridge circuits ; calibration ; electrical resistance measurement ; precision measurements ; superconducting devices |
| Zusammenfassung | A cryogenic current comparator with an overall of 17,252 turns and windings including numbers of turns ranging from 2 0 to 2 13 has been realized. This system offers the possibility of resistance calibration at increased magnetic flux levels and allows for a direct calibration of 1 Ω to 100 MΩ normal resistors against the quantum Hall effect. Besides that, the very low-current measurements at PTB will benefit from the availability of this additional setup. Such applications include the use of this comparator as a current amplifier as well as for calibration of highly-stable transimpedance amplifiers. |
