Title :
Classical Nonquantum AC Power Measurements With Uncertainties Approaching 1 μW/VA
Author :
Ihlenfeld, Waldemar G Kürten ; Mohns, Enrico ; Dauke, Kristian
Author_Institution :
Phys.-Technische Bundesanstalt, Braunschweig
fDate :
4/1/2007 12:00:00 AM
Abstract :
A recent upgrade of the primary standard for electric alternating power at the Physikalisch-Technische Bundesanstalt improved the measurements, indicating that standard uncertainties of the order of 1 muW/VA are attainable. Investigations done to ensure such low uncertainty figures are presented, and the evaluation of measurement uncertainties is discussed in detail
Keywords :
measurement standards; measurement uncertainty; power measurement; electric alternating power; measurement uncertainties; nonquantum AC power measurements; Analog-digital conversion; Discrete Fourier transforms; Frequency measurement; Measurement standards; Measurement uncertainty; Power measurement; Sampling methods; Signal synthesis; Standards publication; Voltage; Accurate ac measurements; ac power; ac ratio; analog-to-digital conversion; phase angle; sampling methods;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2007.890620
