| Zugriffsnummer | 44089 |
| Dokumenttyp | Zeitschriftenartikel |
| Peer Review | mit Peer Review |
| Sprache | Englisch |
| Titel | Characterization of a precision modular sinewave generator |
| Autor(in); Institution |
Kučera, Jan; Czech Metrology Institute (CMI), Brno, CZECH REPUBLIC; Department of Measurements, FEE, Czech Technical University in Prague (CTU), Prague, CZECH REPUBLIC
Kováč, Jakub; Czech Metrology Institute (CMI), Brno, CZECH REPUBLIC; Department of Measurements, FEE, Czech Technical University in Prague (CTU), Prague, CZECH REPUBLIC
Palafox Gamir, Luis; 2.6, Elektrische Quantenmetrologie, PTB-Braunschweig
Behr, Ralf; 2.6, Elektrische Quantenmetrologie, PTB-Braunschweig
Vojáčková, Lucie; Czech Metrology Institute (CMI), Brno, CZECH REPUBLIC
|
| Quelle/Jahr | Measurement Science and Technology: 31 (2020), 6, 1 - 9 |
| Artikelnummer | 064002 |
| ISSN | 0957-0233 (PRINT) ; 1361-6501 (ONLINE) |
| DOI | |
| Verlag | Bristol: IOP Publishing |
| Freie Schlagworte | signal generator ; synthesizer ; voltage ; calibration ; metrology ; impedance ; AC Josephson effect |
| Zusammenfassung | At the Czech Metrology Institute (CMI) we have developed a precision modular sinewave generator for impedance ratio bridges. The generator was developed to improve previously available designs regarding amplitude and phase accuracy, linearity, absolute stability, stability of the ratio between two outputs and harmonic distortion. It generates up to 7 Vrms in the frequency range from 1 mHz up to 20 kHz, extendable to 100 kHz with small changes to the filters. The amplitude resolution is better than 0.01 μV/V of full scale with an output voltage stability of 0.05 μV/V/30 minutes and a stability for the ratio between two outputs of 0.02×10-6 over several hours. The generator can be powered from internal batteries and is controlled via optically isolated connections. The internal clock and voltage references can be replaced by external ones, optically coupled in the case of the clock. In this paper, we discuss experimental results obtained with the generator used as a signal source in digital impedance bridges with relative combined uncertainties from 10-5 down to 10-8. The generators have been used in a bridge to drive a quantum Hall resistor in the AC regime. The use of the generator with the AC quantum voltmeter will also be discussed. The generator is not only applicable in the field of AC impedance metrology but also for on-site comparisons of AC quantum voltage standards or, in general, where there is a need for precision voltage sources. |
| Kostenfreier Zugang | Open Access Hybrid |
| Rechteinformation | CC BY 4.0 ; Creative Commons Attribution 4.0 License |
| Themenbereich der Metrologie | Elektrizität und Magnetismus |
| Forschungsprojekt | SIB53: AIM QuTE: Automated impedance metrology extending the quantum toolbox for electricity |
| Förderinformationen (1) |
Förderername: European Commission (EC)
Förderer ID: 0000 0001 2242 8989 Förderer ID Typ: ISNI Förderprogramm: EMRP 2012 SI Broader Scope Titel der Förderung: SIB53: AIM QuTE: Automated impedance metrology extending the quantum toolbox for electricity Förderungsnummer: SIB53 |