Further Generalization of the Low-Frequency True-RMS Instrument

  title={Further Generalization of the Low-Frequency True-RMS Instrument},
  author={Velibor Pjevalica and Vladimir Vujicic},
  journal={IEEE Transactions on Instrumentation and Measurement},
This paper shows that the use of random uniform dither in harmonic measurement can significantly shorten both the word of the input A/D converter and the word of the applied base function (sine and/or cosine, prestored in memory), without accuracy loss. This simplifies the hardware for a precise instrument for harmonic measurement. Theoretical considerations demonstrate that the upper limit of the absolute measurement uncertainty is identical for every harmonic coefficient. It is shown… CONTINUE READING
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