Precizni sustav za mjerenje napona niske frekvencije

master's thesis

• Title (english): A precise system for low frequency voltage measurement
• Author: Nikola Kaužljar
• Mentor: Igor Krois (mentor)
• Committee member: Igor Krois (predsjednik povjerenstva)
• Committee member: Marko Koričić (član povjerenstva)
• Committee member: Tvrtko Mandić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2024-09-20, Croatia

Abstract

Precizni sustav za mjerenje napona niske frekvencije
Realiziran je mjerni sustav sa ciljanom točnošću od 0.05%, mjernim opsegom od 0 V do 10 V, temperaturnim opsegom od 15°C do 30°C, maksimalnom frekvencijom mjerenja od 0.5 Hz sa odgovarajućom zaštitom mjernog sklopovlja od prenapona i reverznih napona te sa odgovarajućom programskom podrškom za umjeravanje i digitalni prikaz podataka. Izrađene su sheme, izabrane komponente koje najbolje odgovaraju zahtjevima bez prevelikog utjecaja na povećanje cijene, izrađene su tiskane pločice i složene u mehaničko kućište sa pažnjom prema fizikalnim efektima koji mogu negativno utjecati na mjernu točnost uređaja.
Odrađena su mjerenja s kojima je potvrđeno ispunjavanje zadanih zahtjeva.

Abstract (english)

A precise system for low frequency voltage measurement
A low frequency voltage measurement system was designed. System specifies target accuracy of 0.05%, measuring scope of 0 V to 10 V, temperature scope of 15°C to 30°C, maximum measurement frequency of 0.5 Hz with appropriate measurement input protection from overvoltage and reverse voltage, with appropriate software support for calibration and digital data display. Schematics were designed, appropriate component were selected, without drastically increasing the price, PCBs were designed and were assembled into a mechanical housing with focus on physical effects that can adversely affect the measuring accuracy of the device.
Measurements have been made with which the system specifications have been confirmed.

• Keywords: mjerni sustav; voltmetar; temperaturni utjecaji; prenaponska zaštita; filtriranje; niska frekvencija
• Keywords (english): measurement system; voltmeter; temperature effects; overvoltage protection; filtering; low frequency
• Language: croatian
• URN:NBN: urn:nbn:hr:168:491089
• Study programme: Title: Electrical Engineering and Information Technology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije (magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2024-11-07 05:38:55