| Zugriffsnummer | 32233 |
| Dokumenttyp | Konferenzartikel |
| Sprache | Englisch |
| Titel | AC-DC transfer measurements in the mV-range using discrete micropotentiometers |
| Autor(in); Institution |
Geronymo, G.; Instituto Nacional de Metrologia (Inmetro), Rio de Janeiro, BRAZIL
Ribeiro-Silva, C. I.; Instituto Nacional de Metrologia (Inmetro), Rio de Janeiro, BRAZIL
Souza, R. M.; Instituto Nacional de Metrologia (Inmetro), Rio de Janeiro, BRAZIL
Klonz, M.; PTB-Braunschweig, retired staff
|
| Quelle/Jahr | 29th Conference on Precision Electromagnetic Measurements digest:(2014), 514 - 515 |
| Availability | [CD-ROM] ; file name: 257.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 | AC-DC voltage difference ; milivolt calibration ; micropotentiometer ; thermoconverters ; electrical metrology |
| Zusammenfassung | This paper describes the new primary standard for the ac-dc low voltage transfer at Inmetro, based on micropoten- tiometers with PMJTCs and commercial current shunts. The design of the new micropotentiometers is presented, followed by the build-down of the voltage scale into the mV-ranges and the uncertainty analysis. Finally, the results of an unofficial interlaboratory comparison between Inmetro and PTB, at 20 mV, are presented and discussed. |
