Title :
On the selection of the “best” test waveform for calibrating electrical instruments under nonsinusoidal conditions
Author :
Ferrero, A. ; Muscas, C.
Author_Institution :
Dipt. di Elettronica, Politecnico di Milano, Italy
Abstract :
The paper deals with a test method, based on the generation of signals with known and pre-assigned harmonic content, for calibrating measurement devices to be used under nonsinusoidal conditions. Attention is concentrated on selecting the most suitable waveforms for the characterization of measurement instruments, by considering both the amplitude and the relative phase of the different harmonics. The aim is to identify the situations that cause, more than others do, uncertainty problems while measuring different quantifies. This investigation is performed by means of a number of numerical simulations in which pre-defined values for each uncertainty source have been added to the voltage and current acquisition channels
Keywords :
calibration; digital instrumentation; harmonic distortion; measurement uncertainty; waveform generators; ADC; amplitude; arbitrary waveforms generation; best test waveform selection; current acquisition channels; electrical instruments calibration; measurement instruments; nonsinusoidal conditions; numerical simulations; pre-assigned harmonic content signals; relative phase; uncertainty problems; voltage acquisition channels; Electric variables measurement; Instruments; Measurement uncertainty; Performance evaluation; Pollution measurement; Power measurement; Power quality; Power system harmonics; Signal generators; Testing;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1999. IMTC/99. Proceedings of the 16th IEEE
Conference_Location :
Venice
Print_ISBN :
0-7803-5276-9
DOI :
10.1109/IMTC.1999.777012