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 Paolo
Conceptualization
;
Cerri, Roberto
Conceptualization
;
Lanzillotti, Marco
Data 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 in questo prodotto:
File Dimensione Formato  
MEAS_123.pdf

solo utenti autorizzati

Descrizione: PDF
Tipologia: Versione editoriale
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: Documento in 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.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11696/57805
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 2
  • ???jsp.display-item.citation.isi??? 1
social impact