The Use of Kramers-Kronig Relations for Verification of Quality of Ferrite Magnetic Spectra
The complex initial permeability (CIP) as a function of frequency is one of the main properties of ferrites. This characteristic (CIP) is measured experimentally, therefore there can be found noisy, doubtful or incomplete parts of the spectrum. Thus there is a need for a method of evaluation of qual...
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| Format: | Article |
| Language: | English |
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Riga Technical University Press
2015-12-01
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| Series: | Electrical, Control and Communication Engineering |
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| Online Access: | https://doi.org/10.1515/ecce-2015-0009 |
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| author | Ponomarenko Nikolajs Solovjova Tatjana Grizans Juris |
| author_facet | Ponomarenko Nikolajs Solovjova Tatjana Grizans Juris |
| author_sort | Ponomarenko Nikolajs |
| collection | DOAJ |
| description | The complex initial permeability (CIP) as a function of frequency is one of the main properties of ferrites. This characteristic (CIP) is measured experimentally, therefore there can be found noisy, doubtful or incomplete parts of the spectrum. Thus there is a need for a method of evaluation of quality of CIP. In this article for evaluation of the quality of experimental CIP spectra of polycrystalline ferrite materials the KKR (Kramers-Kronig relations) are used. In order to apply KKR to experimentally measured data (i.e. data with finite limits) the method of transforming these integral relations into summation relations with finite limits is developed and described. This method can be used only for CIP given over the wide frequency rage, so that the imaginary part of CIP is fully presented. Using KKR with the help of CIP spectra model (based on the effects coming from polycrystal grain sizes and defects distribution) partly removes aforementioned limit. Thus with the help of the model we can also make CIP spectra reconstruction (in cases when CIP is noisy or incomplete) and CIP spectra decomposition. |
| format | Article |
| id | doaj-art-030dfbf3fe014a4a909470087bc1535e |
| institution | Kabale University |
| issn | 2255-9159 |
| language | English |
| publishDate | 2015-12-01 |
| publisher | Riga Technical University Press |
| record_format | Article |
| series | Electrical, Control and Communication Engineering |
| spelling | doaj-art-030dfbf3fe014a4a909470087bc1535e2024-12-02T04:25:16ZengRiga Technical University PressElectrical, Control and Communication Engineering2255-91592015-12-0191303510.1515/ecce-2015-0009ecce-2015-0009The Use of Kramers-Kronig Relations for Verification of Quality of Ferrite Magnetic SpectraPonomarenko Nikolajs0Solovjova Tatjana1Grizans Juris2Scientific assistant, Riga Technical UniversityResearcher, Riga Technical UniversityScientific assistant, Riga Technical UniversityThe complex initial permeability (CIP) as a function of frequency is one of the main properties of ferrites. This characteristic (CIP) is measured experimentally, therefore there can be found noisy, doubtful or incomplete parts of the spectrum. Thus there is a need for a method of evaluation of quality of CIP. In this article for evaluation of the quality of experimental CIP spectra of polycrystalline ferrite materials the KKR (Kramers-Kronig relations) are used. In order to apply KKR to experimentally measured data (i.e. data with finite limits) the method of transforming these integral relations into summation relations with finite limits is developed and described. This method can be used only for CIP given over the wide frequency rage, so that the imaginary part of CIP is fully presented. Using KKR with the help of CIP spectra model (based on the effects coming from polycrystal grain sizes and defects distribution) partly removes aforementioned limit. Thus with the help of the model we can also make CIP spectra reconstruction (in cases when CIP is noisy or incomplete) and CIP spectra decomposition.https://doi.org/10.1515/ecce-2015-0009mathematical modelmathematical analysispermeabilitymagnetic propertiesferrites |
| spellingShingle | Ponomarenko Nikolajs Solovjova Tatjana Grizans Juris The Use of Kramers-Kronig Relations for Verification of Quality of Ferrite Magnetic Spectra Electrical, Control and Communication Engineering mathematical model mathematical analysis permeability magnetic properties ferrites |
| title | The Use of Kramers-Kronig Relations for Verification of Quality of Ferrite Magnetic Spectra |
| title_full | The Use of Kramers-Kronig Relations for Verification of Quality of Ferrite Magnetic Spectra |
| title_fullStr | The Use of Kramers-Kronig Relations for Verification of Quality of Ferrite Magnetic Spectra |
| title_full_unstemmed | The Use of Kramers-Kronig Relations for Verification of Quality of Ferrite Magnetic Spectra |
| title_short | The Use of Kramers-Kronig Relations for Verification of Quality of Ferrite Magnetic Spectra |
| title_sort | use of kramers kronig relations for verification of quality of ferrite magnetic spectra |
| topic | mathematical model mathematical analysis permeability magnetic properties ferrites |
| url | https://doi.org/10.1515/ecce-2015-0009 |
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