Traceability of DC high voltage measurements using the Josephson voltage standard |
| |
| Affiliation: | 1. University of Oulu, Optoelectronics and Measurement Techniques Laboratory, Oulu, Finland;2. Oulu University Hospital, Department of Diagnostic Radiology, Oulu, Finland;3. Gdansk University of Technology, Department of Metrology and Optoelectronics, Gdansk, Poland;1. Department of Mathematics, College of Basic Sciences, Karaj Branch, Islamic Azad University, Alborz, Iran;2. Department of Applied Mathematics, Islamic Azad University, Rasht, Iran;1. Department of Electrical Engineering, Urmia Branch, Islamic Azad University, Urmia, Iran;2. Department of Electrical Engineering, Tabriz Branch, Islamic Azad University, Tabriz, Iran;3. Microwave and Antenna Research Center, Urmia Branch, Islamic Azad University, Urmia, Iran |
| |
| Abstract: | This paper introduces a new methodology for obtaining high voltage DC measurements traceability to the International System of Units (SI) at the Egyptian National Institute for Standards (NIS). The traceability has been achieved via the NIS automated 10 V DC Josephson Voltage Standard (JVS). A 100 kV DC voltage divider with a nominal voltage ratio of 10,000:1 is being used with its display in parallel with a high sensitive digital voltmeter. The traceability has been realized by calibrating this digital voltmeter via the JVS system and then it has been used to calibrate the divider display readings. Moreover, the divider ratio has been accurately calibrated using a traceable calibrator source on its high voltage side and the calibrated digital voltmeter on its low voltage side. Accurate and traceable high voltage values have been obtained associated with their expanded uncertainties. Highly improved uncertainties have been achieved using this new calibration technique. |
| |
| Keywords: | DC high voltage Josephson voltage standard Traceability Percentage error Uncertainty |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
