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undergraduate thesis
Fluxgate gradiometar
Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing, 2018. urn:nbn:hr:168:220484
Gredičak, Ivan
University of Zagreb
Faculty of Electrical Engineering and Computing

Institutional repository: FER Repository

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Gredičak, I. (2018). Fluxgate gradiometar (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing. Retrieved from https://urn.nsk.hr/urn:nbn:hr:168:220484

Gredičak, Ivan. "Fluxgate gradiometar." Undergraduate thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, 2018. https://urn.nsk.hr/urn:nbn:hr:168:220484

Gredičak, Ivan. "Fluxgate gradiometar." Undergraduate thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, 2018. https://urn.nsk.hr/urn:nbn:hr:168:220484

Gredičak, I. (2018). 'Fluxgate gradiometar', Undergraduate thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, accessed 21 May 2024, https://urn.nsk.hr/urn:nbn:hr:168:220484

Gredičak I. Fluxgate gradiometar [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing; 2018 [cited 2024 May 21] Available at: https://urn.nsk.hr/urn:nbn:hr:168:220484

I. Gredičak, "Fluxgate gradiometar", Undergraduate thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, Zagreb, 2018. Available at: https://urn.nsk.hr/urn:nbn:hr:168:220484

Metadata
TitleFluxgate gradiometar
Title (english)Fluxgate gradiometer
AuthorIvan Gredičak
MentorMario Cifrek (mentor)
Committee memberMario Cifrek (predsjednik povjerenstva)
Committee memberŽeljka Lučev Vasić (član povjerenstva)
Committee memberMarko Gazivoda (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Electrical Engineering and Computing
Zagreb
Defense date and country2018-07-13, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Computing
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Electrical Engineering
Abstract
U ovom Završnom radu je objašnjena teorijska podloga i načelo rada Fluxgate magnetometara i gradiometara te su opisane neke od njihovih primjena. Istaknute su prednosti Fluxgate magnetometara te su uspoređena svojstva različitih izvedbi. Provedena je analiza postojeće izvedbe te je utvrđeno kako postoji značajna asimetrija između sondi i napon pomaka. Bitno je istaknuti važnost smanjenja napona pomaka i otklanjanja asimetrije jer je uređaj namijenjen za mjerenje bioloških magnetskih polja gdje je potrebna visoka osjetljivost. Asimetrija je otklonjena izradom novog para sondi Fluxgate gradiometra i prilagodbom ulazne impedancije. Napon pomaka je smanjen spajanjem promjenjivih otpornika na predviđena mjesta i ugađanjem te pravilnim razvođenjem mase. Sve izmjene na uređaju su detaljno opisane i izneseni su razlozi za njihovu provedbu te je prokomentiran učinak svake od izmjena na rad cijelog uređaja. Na kraju rada je iznesen prijedlog nove izvedbe Fluxgate gradiometra koja bi se mogla primijeniti u magnetokardiografiji i magnetomiografiji.
Abstract (english)
In this BSc Thesis theoretical background and operating principle of Fluxgate magnetometer and gradiometer are explained. Some applications of Fluxgate gradiometer and magnetometer are described. The advantages of Fluxgate gradiometer are described and performances of different implementations are compared. Existing prototype was analyzed and there was found significant asymmetry between two probes and offset voltage. It is important to reduce offset voltage and eliminate asymmetry because device is intended to measure biological magnetic fields (high sensitivity is required). Asymmetry was eliminated by developing a new pair of Fluxgate gradiometer probes and adapting input impedance. The offset voltage was reduced by connecting trimmer resistors and properly connecting ground wires. Every modification on the device is described in detail and the reasons for their implementation are explained. New implementation of Fluxgate gradiometer which could be applied in magnetocardiography and magnetomyography is suggested at the end of the assignment.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:168:220484
Study programmeTitle: Electrical Engineering and Information Technology
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektrotehnike i informacijske tehnologije (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektrotehnike i informacijske tehnologije)
Type of resourceText
File originBorn digital
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Created on2019-03-13 20:36:03