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A novel ppm-precise absolute calibration method for precision high-voltage dividers

Rest, O.; Winzen, D.; Bauer, S.; Berendes, R.; Meisner, J.; Thümmler, Thomas; Wüstling, Sascha; Weinheimer, C

Abstract:
The most common method to measure direct current high voltage (HV) down to the ppm-level is to use resistive high-voltage dividers. Such devices scale the HV into a range where it can be compared with precision digital voltmeters to reference voltages sources, which can be traced back to Josephson voltage standards. So far the calibration of the scale factors of HV dividers for voltages above 1 kV could only be done at metrology institutes and sometimes involves round-robin tests among several institutions to get reliable results. Here we present a novel absolute calibration method based on the measurement of a differential scale factor, which can be performed with commercial equipment and outside metrology institutes. We demonstrate that reproducible measurements up to 35 kV can be performed with relative uncertainties below
1 · 10$^{-6}$. This method is not restricted to metrology institutes and offers the possibility to determine the linearity of high-voltage dividers for a wide range of applications.

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Verlagsausgabe §
DOI: 10.5445/IR/1000098155
Veröffentlicht am 09.09.2019
Coverbild
Zugehörige Institution(en) am KIT Institut für Kernphysik (IKP)
Institut für Prozessdatenverarbeitung und Elektronik (IPE)
Publikationstyp Zeitschriftenaufsatz
Jahr 2019
Sprache Englisch
Identifikator ISSN: 0026-1394, 1681-7575
KITopen-ID: 1000098155
HGF-Programm 51.03.01 (POF III, LK 01)
Erschienen in Metrologia
Band 56
Heft 4
Seiten Art.-Nr.: 045007
Vorab online veröffentlicht am 02.07.2019
Externe Relationen Abstract/Volltext
Schlagworte high-voltage divider, high-voltage calibration, HVDC metrology, ppm-level calibration
Nachgewiesen in Web of Science
Scopus
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