A Method for Precise RMS Measurements of Periodic Signals by Reconstruction Technique With Correction

Author

Muciek, Andrzej Konstanty

Author_Institution

Wroclaw Univ. of Technol.

Volume

56

Issue

2

fYear

2007

fDate

4/1/2007 12:00:00 AM

Firstpage

513

Lastpage

516

Abstract

In this paper, a method for precise rms measurement of periodic signals based on signal reconstruction is presented. Reconstruction is performed in two steps. In the first step, the Fourier coefficients are estimated from integrative samples, and in the second step, using the method of least squares and precision measurement of rectified-signal average, the estimators are corrected. It is shown that this approach considerably increases accuracy of the rms measurements of low-frequency signals

Keywords

Fourier transforms; least squares approximations; signal reconstruction; Fourier coefficients; RMS measurements; correction; integrative sampling; least squares method; periodic signals; precision measurement; rectified-signal average; root mean square measurements; signal reconstruction; Helium; Instruments; Laboratories; Least squares approximation; Measurement standards; Measurement uncertainty; Root mean square; Sampling methods; Signal reconstruction; Voltage; Integrative sampling; root mean square (rms) measurements; s ignal reconstruction;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/TIM.2007.891096

Filename

4126896