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This paper presents several documents kept in the archive of the city of Sombor in the fund of the Magistrate of the Free Royal City 1749-1918, which refer to an interesting case of an attempt to challenge the treatment given to two patients by the city surgeon, Antonius Merkel. The lawsuit was filed by another doctor, Carl Reitzinger, accusing his colleague of excessive treatment costs and the use of certain medication. Although the attached documents do not shed light on the conclusion of the dispute, one gets the impression that Antonius Merkel successfully justifies his actions. The transcribed and translated documents provide significant insight into the nature of medical treatment in Sombor in the second half of the 18th century.

This paper presents the characterization, simulation and modeling of common mode choke (CMC), intended to suppress electromagnetic interference. Since the knowledge of CMC characteristics is significant for the correct design of an electronic circuit to meet the electromagnetic compatibility standards, this paper presents the procedure of CMC characterizing by measuring scattering parameters (S-parameters) using a spectrum analyzer. The Open-Circuit method is used for the CMC’s electrical parameters extraction and investigating its efficiency in suppressing common-mode and differential-mode interference in the frequency range up to 50 MHz. The CMC is an inductive component comprising a commercially available toroid employed as a magnetic core and two windings of insulated wires wound around it. The ferrite material (its properties and geometry) and the windings determine CMC’s electrical characteristics (rated current, frequency range, characteristics impedance, and insertion loss). Therefore, the number of turns’ influence on its characteristics will be investigated to provide a fast design of CMC for a certain application.

In this paper, an organic capacitive displacement sensor was fully realized using Fused Filament Fabrication (FFF) technology. The fabricated sensor consists of two circular electrodes, the spacer, and the casing. The FFF-printed electrodes were made of a conductive graphene/Polylactic acid (PLA) composite filament. For sensor’s spacer a thermoplastic elastomer filament was used. Using these filaments gives us the possibility to design the extremely simple sensor with good sensitivity. The casing of the sensor and the applicator used for applying the displacement on the sensor were fabricated using a PLA. The sensor with three setup of spacer with different infill densities of the spacer (50%, 80%, and 100%) were realized and their characteristics were compared. The highest sensitivity was obtained for the sensor with infill density of spacer of 50%. The measurement results confirm the possibility of using FFF technology for the fabrication of low-cost and all organic and fully FFF-printed sensor with good characteristics.

U disertaciji je prikazano teorijsko i praktično istraživanje koje se odnosi na projektovanje, fabrikaciju i karakterizaciju heterogeno integrisanih induktivnih senzora za mjerenje sile, pritiska i pomjeraja. Cilj istraživanja doktorske disertacije je kombinovanje različitih tehnologija izrade i materijala, kako bi se projektovali senzori koji će biti konkurentni aktuelnim rešenjima, i koji bi se mogli koristiti za konkretne primjene. U okviru istraživanja, heterogenom integracijom su kombinovane prednosti tehnologije štampanih ploča (Printed Circuit Board - PCB), fleksibilne tehnologije i tehnologije niskotemperaturne zajedno-pečene keramike (Low Temperature Co-fired Ceramics – LTCC). Razvijena su tri prototipa senzora za mjerenje sile, pritiska i pomjeraja korišćenjem struktura sa induktorom i feritom u njegovoj blizini. Mjerenje realizovanih prototipova senzora vrši se bežično pomoću spregnutog antenskog namotaja. Na osnovu početnih rezultata ispitivanja, senzori su modifikovani u cilju poboljšanja i optimizovanja performansi. Projektovani senzori omogućavaju bežično mjerenje, jeftini su, kompaktni i jednostavni. Na osnovu teorijske analize, simulacija, eksperimetnalnih mjerenja, ustanovljena je ispravnost rada i primjenljivost realizovanih senzora., In doctoral thesis theoretical and practical investigation on design, fabrication and characterisation of heterogenous integrated inductive sensors for measuring force, pressure and displacement are shown. The aim of the thesis is to investige the usage of different technologies and materials in order to design sensors which will be competitive to actual solutions and usable for specific aplications. Using heterogenous integraton, advantages of Printed Circuit Board technology (PCB), flexible and Low Temperature Co-fired Ceramics (LTCC) technologies are used. Three sensor prototypes for measuring force, pressure and displacement are developed using inductor and ferrite in its near proximity. Measurements of the realised sensor prototypes are wirelessly done using an external surrounding coil as an antenna. Based on the initial measuring results, sensors are redesigned in order to improve and optimize their performance. Projected sensors are low-cost, compact, simple, and enable wireless measurement. The proper operation and applicability of realized sensors are confirmed using theoretical analysis, simulation and experimental testing with presented results.

One of new courses on the fifth-academic year of new curriculum at the University of Novi Sad is "Electromagnetic Compatibility (EMC) and Electromagnetic Interference (EMI) in Electronics". The aim of this course is to provide knowledge of basic EMI design concepts through classical lectures, but also design of EMI suppression components using specially developed simulation tool. In this paper, a few typical design problems and measurement experiments are presented and discussed. Using specially developed simulation tool, student can solve laboratory exercise and learn to design EMI suppressors. In addition, using vector network analyzer and EMC test kit, they can study electrical characteristics of EMI filters currently available at the market and learn measurement techniques, necessary in their future work in the laboratories and in the industry.