Precision measurement of AC voltage below 20 Hz at IEN

Author

Pogliano, Umberto

Author_Institution

Ist. Elettrotecnico Nazionale Galileo Ferraris, Torino, Italy

Volume

46

Issue

2

fYear

1997

fDate

4/1/1997 12:00:00 AM

Firstpage

369

Lastpage

372

Abstract

A new system for ac voltage measurements at low frequencies has been built at the Istituto Elettrotecnico Nazionale (IEN). The system uses a sampling voltmeter working as an integrating analog to digital converter and software programs for data acquisition and processing. An algorithm for the reconstruction of the input voltage based on a model of the converter allows the precise evaluation of the signal parameters. Comparisons at 20 Hz and 40 Hz with measurements made using the thermal converters of the national standard have shown differences lower than a few parts in 10⁶

Keywords

analogue-digital conversion; data acquisition; measurement standards; voltage measurement; voltmeters; 20 Hz; 40 Hz; AC voltage; IEN; Istituto Elettrotecnico Nazionale; data acquisition; input voltage reconstruction; integrating analog to digital converter; precision measurement; sampling voltmeter; signal parameters; Analog-digital conversion; Calibration; Force measurement; Frequency conversion; Frequency measurement; Sampling methods; Signal sampling; Thermal force; Voltage measurement; Voltmeters;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.571858

Filename

571858