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master's thesis
Mjerač induktiviteta
2015. urn:nbn:hr:200:435254
Zetović, Ivan
Josip Juraj Strossmayer University of Osijek
Faculty of Electrical Engineering, Computer Science and Information Technology Osijek
Department of Communications
Chair of Electronics and Microelectronics

Cite this document

Zetović, I. (2015). Mjerač induktiviteta (Master's thesis). Retrieved from https://urn.nsk.hr/urn:nbn:hr:200:435254

Zetović, Ivan. "Mjerač induktiviteta." Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, 2015. https://urn.nsk.hr/urn:nbn:hr:200:435254

Zetović, Ivan. "Mjerač induktiviteta." Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, 2015. https://urn.nsk.hr/urn:nbn:hr:200:435254

Zetović, I. (2015). 'Mjerač induktiviteta', Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, accessed 10 May 2021, https://urn.nsk.hr/urn:nbn:hr:200:435254

Zetović I. Mjerač induktiviteta [Master's thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek; 2015 [cited 2021 May 10] Available at: https://urn.nsk.hr/urn:nbn:hr:200:435254

I. Zetović, "Mjerač induktiviteta", Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, Osijek, 2015. Available at: https://urn.nsk.hr/urn:nbn:hr:200:435254

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Metadata
TitleMjerač induktiviteta
Title (english)Inductance meter
AuthorIvan Zetović
MentorDavor Vinko (mentor)
Committee memberDavor Vinko (predsjednik povjerenstva)
Committee memberTomislav Matić (član povjerenstva)
Committee memberMarijan Herceg (član povjerenstva)
GranterJosip Juraj Strossmayer University of Osijek
Faculty of Electrical Engineering, Computer Science and Information Technology Osijek
(Department of Communications)
(Chair of Electronics and Microelectronics)
Osijek
Defense date and country2015-09-16, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Electrical Engineering
Telecommunications and Informatics
Abstract
Mjerač induktiviteta je izveden tako da mjeri nepoznate induktivitete s 5 % točnosti. Mjerni opseg uređaja se kreće od 1 uH pa sve do nekoliko desetaka mH. Mjerenje nepoznatog induktiviteta se temelji na mjerenju frekvencije LC oscilatora koji se nalazi na ulazu naponskog komparatora, čija je uloga pretvaranje ulaznog sinusnog signala u digitalni signal amplitude 5 V kako bi on bio primjeren za rad sa mikroupravljačem. Kao glavna komponenta cijelog uređaja upotrijebljen je mikroupravljač ATmega32A. Uloga mikroupravljača je mjerenje frekvencije, te izračunavanje nepoznatog induktiviteta na temelju vrijednosti kalibracijskog kondenzatora i izmjerenih frekvencija, te prikaz rezultata mjerenja na LCD 16x2 zaslonu. Jedan od najvećih ograničavajućih faktora ovog uređaja je naponski komparator LM311 koji ne oscilira pravilno ispod 5 kHz, a pri frekvenciji većoj od 1 MHz unosi izobličenje u digitalni signal (zakošenje gornjeg lijevog brida).
Abstract (english)
Inductance meter is configured to measure unknown inductances with 5 % accuracy. Measuring range of device ranges from 1 uH up to several tens of mH. Measuring unknown inductance is based on measuring the frequency of LC oscillator which is located at the entrance of a voltage comparator, whose role is to convert the input sine signal into a digital signal with 5 V amplitude, so that it would be appropriate to work with the microcontroller. As a major component of the entire device was used microcontroller ATmega32A. The role of the microcontroller is to measure frequency and calculate the unknown inductance based on the value of the calibration capacitor Cc and the measured frequency, and display the measurement results on LCD 16x2 display. One of the major limiting factors of this device is a voltage comparator LM311 which does not oscillate properly below 5 kHz and at a frequency greater than 1 MHz introduces distortion into a digital signal (curvature of the upper left edge).
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:200:435254
Study programmeTitle: Graduate University Study Programme in Electrical Engineering; branch: Communications and Informatics, Power Engineering
Course: branch: Communications and Informatics
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka elektrotehnike (magistar/magistra inženjer/inženjerka elektrotehnike)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2016-06-29 08:49:59