Title :
High-precision AC measurements using the Monte Carlo method
Author_Institution :
Univ. of Appl. Sci., Wilhelmshaven, Germany
fDate :
4/1/2001 12:00:00 AM
Abstract :
The paper describes a novel method for fast and high precision true RMS measurements of arbitrarily shaped electrical signals. The method, which is based on the Monte Carlo method, avoids the application of any nonlinear function to the signal under test and allows extremely high sampling rates. An experimental realization of the method for determining the RMS voltage of a waveform has been tested at the PTB, and for frequencies between 30 Hz and 70 kHz the results were found to be in agreement with the settings of the PTB AC standard to within ±0.01% of full scale. High accuracy and fast measurements of other characteristic AC values as well as real and reactive power are achievable with the same principle
Keywords :
Monte Carlo methods; digital-analogue conversion; power measurement; signal sampling; voltage measurement; 30 Hz to 70 kHz; Monte Carlo method; PTB AC standard; arbitrarily shaped electrical signals; extremely high sampling rates; fast DAC; fast measurements; high-precision AC measurements; power measurement; random signals; reactive power; real power; true RMS measurements; waveform RMS voltage measurement; Bandwidth; Electric variables measurement; Frequency; Measurement uncertainty; Power measurement; Sampling methods; Shape measurement; Statistical analysis; Stochastic processes; Testing;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
