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Title:Skener bližnjega elektromagnetnega polja s preletom frekvenc : magistrsko delo
Authors:ID Vintar, Mark (Author)
ID Vlaovič, Boštjan (Mentor) More about this mentor... New window
ID Gungl, Ernest (Comentor)
Files:.pdf MAG_Vintar_Mark_2025.pdf (4,81 MB)
MD5: 1DA13743E4C5ED4D81A582A15AE6DBDA
 
Language:Slovenian
Work type:Master's thesis/paper
Typology:2.09 - Master's Thesis
Organization:FERI - Faculty of Electrical Engineering and Computer Science
Abstract:Zaključno delo vsebuje postopke nadgradnje skenerja bližnjega elektromagnetnega polja, predstavljenega v [1]. Izpostaviti velja impedančno prilagoditev, umerjanje sistema, podporo preletu frekvenc in nadgradnjo uporabniškega vmesnika. Impedančna prilagoditev in s tem zmanjšanje valovitosti, pripomore k boljši ponovljivosti in zanesljivosti meritev. Izvedli smo jo s pomočjo vektorskega mrežnega analizatorja. Umerjanje sistema omogoča merjenje absolutnih vrednosti električnega in magnetnega polja. Ta je bila od sonde naprej izvedena s pomočjo referenčnega vira STW81200-EVB in slabilnika. Pri vsaki sondi je bilo potrebno upoštevati korekcijsko krivuljo, podano s strani proizvajalca. V programskem jeziku Python je bila implementirana podpora frekvenčnega preleta, ki omogoča izvajanje meritev na izbranem frekvenčnem obsegu, kar meritve znatno pohitri in poveča uporabnost rezultatov. Uporabniški vmesnik je bil s pomočjo knjižnice PyQt5 nadgrajen z dodatno funkcionalnostjo. V zaključku naloge je uspešnost nadgradnje sistema prikazana z rezultati meritev testnega merjenca.
Keywords:bližnje elektromagnetno polje, sonde, impedanca, valovitost, korekcijska krivulja
Place of publishing:Maribor
Place of performance:Maribor
Publisher:[M. Vintar]
Year of publishing:2025
Number of pages:1 spletni vir (1 datoteka PDF (XI, 56 str.))
PID:20.500.12556/DKUM-95497 New window
UDC:621.37:004.352(043.2)
COBISS.SI-ID:256076035 New window
Publication date in DKUM:15.10.2025
Views:179
Downloads:27
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FERI
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Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:23.09.2025

Secondary language

Language:English
Title:Electromagnetic near-field scanner with frequency sweep
Abstract:The final thesis presents the upgrade procedures for the electromagnetic near-field scanner introduced in [1]. Particular emphasis is placed on impedance matching, system calibration, frequency sweep support, and an upgraded user interface. Impedance matching, which reduces ripple contributes to improved repeatability and reliability of measurements. It was performed using a vector network analyser. System calibration enables the measurement of absolute values of electric and magnetic fields. From the probe onward, calibration was carried out using the reference source STW81200-EVB and an attenuator. For each probe, the correction curve provided by the manufacturer had to be considered. Frequency sweep support was implemented in the Python programming language, enabling measurements over a selected frequency range, which significantly speeds up the process and increases the usefulness of the results. The user interface was upgraded with additional functionality using the PyQt5 library. In conclusion, the success of the system upgrade is demonstrated by the measurement results of a test sample.
Keywords:near electromagnetic field, probes, impedance, ripple, correction curve


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