Usporedba modela optičkog enkodera s industrijskim enkoderom

undergraduate thesis

• Title (english): Comparison between optical and industrial encoder
• Author: David Horvat
• Mentor: Mario Vražić (mentor)
• Committee member: Mario Vražić (predsjednik povjerenstva)
• Committee member: Damir Vuljaj (član povjerenstva)
• Committee member: Zlatko Hanić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2015-07-13, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

Prvi korak u ovom završnom radu bilo je projektiranje samog modela optičkog enkodera. Kod njegove izrade pojavili su se razni problemi koje je bilo potrebno riješiti. Neki od njih su: oblici signala iz enkodera, montiranje enkodera u blizini motora, snimanje enkoderskih signala itd. Kada je enkoder u cijelosti radio kako treba bila je moguća usporedba s industrijskim rezolverom. Najlakši način na koji je provedena usporedba bio je taj da se snimanje signala iz rezolvera i enkodera provodi istovremeno. Signali su snimljeni u programu LabView i njihov snimak je spremljen u .tdms datoteku. U slijedećem koraku uslijedila je obrada signala iz rezolvera u programu MATLAB. Prikazivanjem signala pozicije rotora na istom grafu iz modela optičkog enkodera i rezolvera vidjela se njihova fazna razlika. Kod manjih brzina ona je minimalna, a kod većih je ipak izraženija.

Abstract (english)

First step in this project was designing the model of optical encoder. There where various problems that needed to be solved. Some of them are: signal waveforms from the encoder, mounting the encoder nearby the motor, recording the encoder signals etc. With a fully functional encoder, it was possible to do a comparison with an industrial resolver. The easiest way to do the comparison with an industrial resolver was to simultaneously recording signals from the resolver and the encoder. The signals were recorded using LabView and were saved in a .tdms file. The next step was to process the signals from the resolver using MATLAB. A phase difference was detected by displaying both the resolver and optical encoder position signal of the rotor on the same graph. At lower speeds the phase shift is minimal, but at higher speed the difference is significant.

• Keywords: enkoder; optički enkoder; inkrementalni optički enkoder; apsolutni optički enkoder; signali „A“; „B“ i „Z“; rezolver; asinkroni motor; pločica; senzor; LabView; MATLAB; pozicija; DAQ uređaj
• Keywords (english): encoder; optical encoder; incremental optical encoder; an absolute optical encoder; the signals "A"; "B" and "Z"; resolver; asynchronous motor; circuit board; sensor; LabVIEW; MATLAB; the position; the DAQ device
• Language: croatian
• URN:NBN: urn:nbn:hr:168:524461
• Study programme: Title: 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 resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2018-02-06 09:09:59