Data processing for magnetic disaccommodation spectroscopy

Author

de Francisco, C. ; Iniguez, J.I. ; Munoz, J.M.

Author_Institution

Dept. de Electron. y Tecnologia Electron., Valladolid Univ., Spain

Volume

25

Issue

6

fYear

1989

fDate

11/1/1989 12:00:00 AM

Firstpage

4413

Lastpage

4420

Abstract

The authors address the problems of analyzing experimental data obtained from magnetic disaccommodation measurements in order to extract information about the nature of the underlying phenomena. Some data processing methods commonly used in this type of investigation are reviewed, and novel techniques aimed at the optimization of the signal-to-noise ratio, the separation of overlapping modes and the determination of the relaxation parameters are discussed. The analysis strategies are divided into two groups: correlation techniques, characterized by different weighting functions and transform techniques, based on the use of the Fourier and Laplace transforms. As an example application, the relaxation process III in a vacancy-doped magnetite sample is analyzed

Keywords

Fourier transforms; Laplace transforms; correlation methods; data analysis; magnetic aftereffect; magnetic variables measurement; spectral analysis; Fourier transform; Laplace transforms; correlation techniques; data processing methods; magnetic disaccommodation spectroscopy; optimization; overlapping modes; relaxation parameters; relaxation process III; signal-to-noise ratio; transform techniques; vacancy-doped magnetite sample; weighting functions; Data analysis; Data mining; Data processing; Fourier transforms; Information analysis; Magnetic analysis; Magnetic separation; Optimization methods; Signal to noise ratio; Spectroscopy;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.45321

Filename

45321