Title :
A method for precise RMS measurements of periodic signals at low frequencies
Author_Institution :
Tech. Univ. of Wroclaw, Poland
Abstract :
A new method of precision reconstruction and the RMS measurements of the low frequency signals is presented. The method is based on the reconstruction technique and additionally uses a precise measurement of the rectified signal average (RSA). This approach considerably increases accuracy of the RMS measurement.
Keywords :
amplitude estimation; analogue-digital conversion; bandlimited signals; harmonic analysis; least squares approximations; signal reconstruction; signal sampling; voltage measurement; AC voltage measurement; Fourier series; Lagrange multipliers; Nyquist inequality; amplitudes estimation; band limited signal; increased accuracy; least squares method; low frequencies; measurement method; periodic signals; precise RMS measurements; precision reconstruction; rectified signal average; Analog-digital conversion; Distortion measurement; Equations; Fourier series; Frequency measurement; Integrated circuit measurements; Sampling methods; Time measurement; Tin; Voltage measurement;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 1998 Conference on
Conference_Location :
Washington, DC, USA
Print_ISBN :
0-7803-5018-9
DOI :
10.1109/CPEM.1998.700029
