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scientific master's theses
Automatizirano umjeravanje otpora stabilnim strujnim izvorom
Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing, 2019. urn:nbn:hr:168:078508
Šala, Alan
University of Zagreb
Faculty of Electrical Engineering and Computing
Department of Electrical Engineering Fundamentals and Measurements

Institutional repository: FER Repository

Cite this document

Šala, A. (2019). Automatizirano umjeravanje otpora stabilnim strujnim izvorom (Scientific master's theses). Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing. Retrieved from https://urn.nsk.hr/urn:nbn:hr:168:078508

Šala, Alan. "Automatizirano umjeravanje otpora stabilnim strujnim izvorom." Scientific master's theses, University of Zagreb, Faculty of Electrical Engineering and Computing, 2019. https://urn.nsk.hr/urn:nbn:hr:168:078508

Šala, Alan. "Automatizirano umjeravanje otpora stabilnim strujnim izvorom." Scientific master's theses, University of Zagreb, Faculty of Electrical Engineering and Computing, 2019. https://urn.nsk.hr/urn:nbn:hr:168:078508

Šala, A. (2019). 'Automatizirano umjeravanje otpora stabilnim strujnim izvorom', Scientific master's theses, University of Zagreb, Faculty of Electrical Engineering and Computing, accessed 17 February 2025, https://urn.nsk.hr/urn:nbn:hr:168:078508

Šala A. Automatizirano umjeravanje otpora stabilnim strujnim izvorom [Scientific master's theses]. Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing; 2019 [cited 2025 February 17] Available at: https://urn.nsk.hr/urn:nbn:hr:168:078508

A. Šala, "Automatizirano umjeravanje otpora stabilnim strujnim izvorom", Scientific master's theses, University of Zagreb, Faculty of Electrical Engineering and Computing, Zagreb, 2019. Available at: https://urn.nsk.hr/urn:nbn:hr:168:078508

Metadata
TitleAutomatizirano umjeravanje otpora stabilnim strujnim izvorom
Title (english)Automated resistance scaling with accurate low-noise current source
AuthorAlan Šala
MentorJosip Butorac (mentor)
Committee memberJosip Butorac (član povjerenstva)
Committee memberStanko Milun (član povjerenstva)
Committee memberDamir Ilić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Electrical Engineering and Computing
(Department of Electrical Engineering Fundamentals and Measurements)
Zagreb
Defense date and country2019, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Electrical Engineering
Electronics
Universal decimal classification
(UDC)		621.3 - Electrical engineering
Abstract
Primarni elektromagnetski laboratorij (PEL) u sklopu Zavoda za OEM FER-a, kao glavnu zadaću ima pohranjivanje i održavanje etalona osnovnih elektromagnetskih veličina: napona, kapaciteta, otpora i vremena (frekvencije). Skupni etalon otpora i laboratorijski mjerni postupci za uspostavu i održavanje njegove sljedivosti postali su osnova za laboratorijsko umjeravanje otpora u visokoj točnosti. U sustavu PEL-a osobito je važan naglasak na automatiziranim mjerenjima i usporedbama etalona otpora zbog dobivanja mjernih rezultata u vrhunskoj točnosti. U radu je načinjena detaljna analiza i izvedba jednog takvog uređaja za međusobnu usporedbu 12 etalona otpora. Projektiran je računalom upravljan visokostalan naponski upravljan strujni izvor s vrlo niskom razinom šuma. Eksperimentalno je i analitički obrađena procjena pojedinačnih doprinosa ukupnoj mjernoj nesigurnosti. Cilj je magistarskog rada doprinos mjernim mogućnostima laboratorija PEL koji svojim rezultatima ravnopravno sudjeluje u uspostavi međunarodno sljedivog mjernog sustava.
Abstract (english)
A main task of Primary Electromagnetic Laboratory (PEL), within the Faculty of Electrical Engineering nad Computing of the University of Zagreb, is maintenance of standards of four major electromagnetic units: volts, farad, ohm and second. The group of resistance and precise measurements procedures have become the basis of accurate laboratory resistance calibrations. Therefore, it is very important to enable a completely automated procedures of measurements, to achieve resistance scaling wth parts-per-million results. This work describe design and realization of low thermal resistance scanner, which accommodates all 12 standard resistors in PEL, used for every day calibration. Also, a new ultra low-noise, computer controlled, current source has been developed, which is used as external current source. The measurement possibilities of the PEL, with associated uncertainties for a particular resistance level are expressed at the end of this work. Finally, the goal of this work is contribution to PEL measurement capabilities, and thus paticipating in establishing of international traceability measurement system.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:168:078508
Study programmeTitle: Postgraduate master programme in electrical engineering
Study programme type: university
Study level: postgraduate
Academic / professional title: Magistar znanosti elektrotehnike (Magistar znanosti elektrotehnike)
Type of resourceText
File originBorn digital
Access conditionsClosed access
Terms of useLicence In copyright icon
Created on2019-07-04 07:16:49