PTB-Reports Elektrizität (PTB-E)
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Report
| Title: |
Traceability of AC voltage ratios and AC power by synchronous digital synthesis and sampling |
| Author(s): |
W. Kürten Ihlenfeld |
| Report type: |
PTB-Bericht |
| Year: |
2001 |
| Document number: |
PTB-E-76 |
| Pages: |
IV, 79 |
| ISBN: |
ISBN 3-89701-767-9 ; ISSN 0341-6674 |
| Keywords: |
PTB-E- |
| Abstract: |
The synchronous synthesis and synchronous measurement of sinusoidal signals using a single internal clock frequency of a high-resolution digitizer allow the determination of alternating current (AC) quantities with unprecedented low uncertainties. A fully digital system based on this technique was developed at the Physikalisch-Technische Bundesanstalt - PTB [1,2] to calibrate measuring instruments for complex AC voltage and current ratios, phase angle, effective value of AC voltages and currents, active, reactive, and apparent power with very low uncertainties. It allows the measurement of the ratio of AC voltages and AC power with uncertainties at the mV/V and mW/W levels respectively. Measurement methods and models for estimating the measurement uncertainties are presented. |
| Note: |
Traceability of AC voltage ratios and AC power by synchronous digital synthesis and sampling ; (PTB-Bericht PTB-E-76) |
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