At National Institute of Metrological Research (INRIM), an automated setup to calibrate dc voltage generators, mainly top-level calibrators, from 1 mV to 1 kV has been developed. The heart of the setup is an INRIM-built automated precision fixed ratios dc voltage divider. It can be interconnected to a DMM characterized in linearity, to a dc voltage standard and to a dc voltage generator under calibration to manage automatically the calibration process. Novelty of the system is the employment of the divider being such an instrument not commercially available. Main results are the improvement of the reliability and the increasing of the accuracy of the calibration process saving a lot of time. In addition, it is possible to avoid several standards (still manually operating) carrying out the whole process without changing the setup configuration and without the presence of operators. The expanded uncertainties of the system span from 6.0 × 10−7 to 1.3 × 10−4 improving the previous capabilities of the INRIM laboratory for calibration of multifunction instruments. The setup concept can be transferred to secondary high-level electrical laboratories to improve and expedite their calibrations.
Automated setup to accurately calibrate electrical dc voltage generators / Galliana, Flavio; Capra, Pier Paolo; Cerri, Roberto; Lanzillotti, Marco. - In: MEASUREMENT. - ISSN 0263-2241. - 123:(2018), pp. 129-134. [10.1016/j.measurement.2018.03.062]
Automated setup to accurately calibrate electrical dc voltage generators
Galliana, Flavio
Writing – Review & Editing
;Capra, Pier PaoloConceptualization
;Cerri, RobertoConceptualization
;Lanzillotti, MarcoData Curation
2018
Abstract
At National Institute of Metrological Research (INRIM), an automated setup to calibrate dc voltage generators, mainly top-level calibrators, from 1 mV to 1 kV has been developed. The heart of the setup is an INRIM-built automated precision fixed ratios dc voltage divider. It can be interconnected to a DMM characterized in linearity, to a dc voltage standard and to a dc voltage generator under calibration to manage automatically the calibration process. Novelty of the system is the employment of the divider being such an instrument not commercially available. Main results are the improvement of the reliability and the increasing of the accuracy of the calibration process saving a lot of time. In addition, it is possible to avoid several standards (still manually operating) carrying out the whole process without changing the setup configuration and without the presence of operators. The expanded uncertainties of the system span from 6.0 × 10−7 to 1.3 × 10−4 improving the previous capabilities of the INRIM laboratory for calibration of multifunction instruments. The setup concept can be transferred to secondary high-level electrical laboratories to improve and expedite their calibrations.File | Dimensione | Formato | |
---|---|---|---|
MEAS_123.pdf
solo utenti autorizzati
Descrizione: PDF
Tipologia:
final published article (publisher’s version)
Licenza:
Non Pubblico - Accesso privato/ristretto
Dimensione
1.29 MB
Formato
Adobe PDF
|
1.29 MB | Adobe PDF | Visualizza/Apri Richiedi una copia |
ART_TAR_CAL_rev1ter (1).pdf
accesso aperto
Tipologia:
accepted manuscript (author’s post-print)
Licenza:
Creative Commons
Dimensione
323.61 kB
Formato
Adobe PDF
|
323.61 kB | Adobe PDF | Visualizza/Apri |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.