Error Analysis of Sampling Computation Method for RMS Measurement
Yicheng Li · JOURNAL OF ELECTRONIC MEASUREMENT AND INSTRUMENT · 2008
The error genesis,measuring effective value of AC signal with sampling computation method,is analyzed in this paper. Four primary geneses,including computation algorithm,measurement errors in non-synchronous,quantization errors of analogue digital converter(ADC) ,integral nonlinearity errors of ADC,are discussed;meanwhile,expressions are given in this paper. The result may be taken as a reference for minimizing influence caused by such errors.