| Zugriffsnummer | 34008 |
| Dokumenttyp | Zeitschriftenartikel |
| Peer Review | unbekannt |
| Sprache | Englisch |
| Titel | Validation of the ultrastable low-noise current amplifier as travelling standard for small direct currents |
| Autor(in); Institution |
Drung, Dietmar; 7.2, Kryophysik und Spektrometrie, PTB-Berlin
Krause, Christian; 7.2, Kryophysik und Spektrometrie, PTB-Berlin
Giblin, S.P.; National Physics Laboratory, Teddington, UK
Djordjevic, S.; Laboratoire national de métrologie et d'essais (LNE) Trappes, FRANCE
Piquemal, F.; Laboratoire national de métrologie et d'essais (LNE) Trappes, FRANCE
Séron, O.; Laboratoire national de métrologie et d'essais (LNE) Trappes, FRANCE
Rengnez, F.; Laboratoire national de métrologie et d'essais (LNE) Trappes, FRANCE
Götz, Martin; 2.6, Elektrische Quantenmetrologie, PTB-Braunschweig
Pesel, Eckart; 2.6, Elektrische Quantenmetrologie, PTB-Braunschweig
Scherer, Hansjörg; 2.6, Elektrische Quantenmetrologie, PTB-Braunschweig
|
| Quelle/Jahr | Metrologia: 52 (2015), 6, 756 - 763 |
| ISSN | 0026-1394 (PRINT) ; 1681-7575 (ONLINE) |
| DOI | |
| Verlag | Bristol, UK: IOP Publishing |
| Freie Schlagworte | Amplifiers ; Calibration ; Electric current measurement ; Electronic circuits ; Measurement units and standards ; Resistance measurement ; Superconducting devices |
| Zusammenfassung | An interlaboratory comparison of small-current generation and measurement capability is presented with the ultrastable low-noise current amplifier (ULCA) acting as travelling standard. Various measurements at direct currents between 0.16 nA and 13 nA were performed to verify the degree of agreement between the three national metrology institutes involved in the study. Consistency well within one part per million (ppm) was found. Due to harsh environmental conditions during shipment, the ULCA’s transfer accuracy had been limited to about ±0.4 ppm. Supplemental measurements performed at PTB indicate that further improvements in accuracy are possible. Relative uncertainties of 0.1 ppm are achieved by applying on-site calibration of the ULCA with a suitable cryogenic current comparator. |
Zitierung
Drung, D., Krause, C., Giblin, S., Djordjevic, S., Piquemal, F., Séron, O., Rengnez, F., Götz, M., Pesel, E., & Scherer, H. (2015). Validation of the ultrastable low-noise current amplifier as travelling standard for small direct currents. Metrologia, 52(6), 756–763. https://doi.org/10.1088/0026-1394/52/6/756