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Estimation of measurement uncertainty in methods for measuring small resistances
Bojan Mujadin (2017)
Josip Juraj Strossmayer University of Osijek
Faculty of Electrical Engineering, Computer Science and Information Technology Osijek
Department of Electromechanical Engineering
Chair of Fundamentals of Electrical Engineering and Measurements
Cite this document

Mujadin, B. (2017). Procjena mjerne nesigurnosti kod metoda za mjerenje malih otpora (Undergraduate thesis). Retrieved from https://urn.nsk.hr/urn:nbn:hr:200:495192

Mujadin, Bojan. "Procjena mjerne nesigurnosti kod metoda za mjerenje malih otpora." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, 2017. https://urn.nsk.hr/urn:nbn:hr:200:495192

Mujadin, Bojan. "Procjena mjerne nesigurnosti kod metoda za mjerenje malih otpora." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, 2017. https://urn.nsk.hr/urn:nbn:hr:200:495192

Mujadin, B. (2017). 'Procjena mjerne nesigurnosti kod metoda za mjerenje malih otpora', Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, accessed 20 October 2019, https://urn.nsk.hr/urn:nbn:hr:200:495192

Mujadin B. Procjena mjerne nesigurnosti kod metoda za mjerenje malih otpora [Undergraduate thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek; 2017 [cited 2019 October 20] Available at: https://urn.nsk.hr/urn:nbn:hr:200:495192

B. Mujadin, "Procjena mjerne nesigurnosti kod metoda za mjerenje malih otpora", Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, Osijek, 2017. Available at: https://urn.nsk.hr/urn:nbn:hr:200:495192

Metadata
TitleProcjena mjerne nesigurnosti kod metoda za mjerenje malih otpora
Title (english)Estimation of measurement uncertainty in methods for measuring small resistances
AuthorBojan Mujadin
MentorVenco Ćorluka (mentor)
Committee memberMarinko Barukčić (predsjednik povjerenstva)
Committee memberVenco Ćorluka (član povjerenstva)
Committee memberDražen Dorić (član povjerenstva)
GranterJosip Juraj Strossmayer University of Osijek
Faculty of Electrical Engineering, Computer Science and Information Technology Osijek
(Department of Electromechanical Engineering)
(Chair of Fundamentals of Electrical Engineering and Measurements)
Osijek
Defense date and country2017-05-25, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Electrical Engineering
Electromechanical Engineering
Abstract
U završnom radu pod nazivom „Procjena mjerne nesigurnosti kod metoda za mjerenje malih otpora“ govori se o različitim metodama mjerenja malih otpora. Postavlja se teorijska podloga i značaj mjerenja malih otpora. Ispitivanja se provode u laboratorijima što ima za svrhu rješavanje utjecaja malih otpora pri mjerenjima. Za stvarnu vrijednost otpora uzima se rezultat dobiven digitalnim instrumentom visoke točnosti. Temeljem obrađenih različitih metoda mjerenja malih otpora provodi se laboratorijsko mjerenje otpora malih vrijednosti u tri različite metode i to: U-I metoda, usporedbena metoda i Thomsonov most. Vrši se mjerenje otpora vrijednosti 0.1Ω, 1Ω i 10Ω. Na temelju izmjerenih veličina vrši se procjena mjerne nesigurnosti pri mjerenju. Procjena mjerne nesigurnosti kod U-I metode mjerenja malih otpora je veća u slučaju mjerenja struje nego napona i to za vrijednost otpora od 10Ω, iznosi 0.86%. Kod usporedbene metode veća pogreška je kod mjerenja napona Ux i to najveća za vrijednost otpora 1Ω, 0.87%. Mjerna nesigurnost kod mjerenja napona Un kod svih vrijednosti otpora procijenjena je na 0.5%.
Abstract (english)
In the final paper titled "Estimation of measurement uncertainties in the method of measuring small resistance", it’s referred to various methods of measuring small resistances. The theoretical background and the significance of small resistance measurements are laid. Tests are conducted in laboratories for purpose of solving effects of low resistances in the measurements. The true value of resistance is taken from the result obtained with a high-accuracy digital instrument. Based on the various low resistance measurement methods, laboratory measurements of low resistance values are performed in three different ways: U-I method, comparative method and Thomson’s bridge. The measurement resistance value is 0.1Ω, 1Ω and 10Ω. Based on the measured size, the measurement uncertainty measurement is performed. The estimation of measurement uncertainty of the U-I measuring method of small resistances is higher in case of current measurement than voltage and for resistance value of 10Ω is 0.86%. Comparative method has greater fault when measuring Ux voltages for maximum resistance value of 1Ω, 0.87%. Measurement uncertainty at measuring voltage Un of all resistance values is estimated at 0.5%.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:200:495192
Study programmeTitle: Professional study programme of Electrical Engineering; specializations in: Power Engineering, Automation, Informatics
Course: Power Engineering
Study programme type: professional
Study level: undergraduate
Academic / professional title: stručni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektrotehnike (stručni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektrotehnike)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of usehttp://rightsstatements.org/vocab/InC/1.0/
Created on2017-10-30 14:59:50