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Rakenduselektroonika labori õppevahend

Kalmet, Karl (2018) Rakenduselektroonika labori õppevahend. [thesis] [en] Application Electronics Laboratory Learning Tool.

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Abstract

Antud lõputöö esimeses pooles otsiti Tallinna Tehnikakõrgkoolile sobilikku õppevahendit, mida saaks kasutada rakenduselektroonika laboris. Selleks külastati Eestis tegutsevaid ülikoole, et tutvuda nendes kasutatavate laboriseadmetega. Samuti tutvuti elektroonika laborivahendeid müüvate ettevõtete toodetega. Tänu sellele oli võimalik analüüsida erinevate õppevahendite omadusi ning luua üldine tehniline kirjeldus sobilikust õppevahendist. Teise etapina kavandati ning valmistati sobilik õppevahend Tallinna Tehnikakõrgkoolile. Üheks sobilikuks õppevahendiks osutus montaažilaud, millega on võimalik uurida erinevate elektroonika elementide tööpõhimõtet ning nendega ka skeeme moodustada. Seetõttu kavandati õppevahend, mis oleks mitmefunktsiooniline, teistest elektriseadmetest sõltumatu ning samas ka ohutu. Kavandatud õppevahend ning sellega koos kasutatavate komponentide kestad modelleeriti ka 3D keskkonnas. Mudelitest tehti ka tootmiseks vajaminevad joonised. Kui seade oli kavandatud valiti välja sobilikud materjalid ning komponendid, millest õppeseadet ehitada. Õppeseade ehitati peamiselt käsitööna kuid koostööd tehti ka ettevõtetega. Keraplast OÜs painutati akrüülplastist korpus. Seadme tööpind ning komponentide kestade plaadid lõigati õigesse mõõtu laserlõikuses. Kui õppevahendi valmistamiseks kulunud komponendid olid soetatud arvutati välja ka seadme hind. Seadme hinnas arvestati ainult laborivahendis olevate komponentide ja laserlõikuse hindu. Koostatud seadme arvutuslik hind on 570 eurot. Uuriti ka ostetavate õppevahendite maksumusi ning selgus, et valminud õppevahend kuulub hinna poolest odavamate hulka. Laboriseadme õigeks ja ohutuks kasutamiseks koostati ka vajalikud juhised. Nende seas oleva kasutusjuhend annab ülevaate kuidas õppeseadet ohutult kasutada. Hooldusjuhend annab ülevaate kuidas hooldada seadmel olevaid ümarpistikuid. Samuti kirjeldatakse hooldusjuhendis kuidas vahetada komponentide sees olevat elektroonilist elementi.

Abstract [en]

The prupose of this thesis, is to find out suitable learning tool for application electronics laboratory. After finding suitable solution it will be designed and constructed. This device will be used in Tallinn University of Applied Sciences. This thesis, Application Electronics Laboratory Learning Tool, is essential because currently Tallinn University of Applied Sciences don`t have a learning tool in application electronics practicum. In order to find out suitable solution several Estonia Universities were visited. Also devices which can be bought from reseller were researched. This collected information give good insight in order to analyze different learning tool´s properties. In comparing different solutions it turned out that mounting board can be a useful learning tool. With mounting board students can test different electronics components and construct schemes. Therefore planned learning tool should be functional, independent and safe. For independent purpose the transformer was designed inside the device core. The shell of the equipment was designed from acrylic plastic. Acrylic plast is transparent and thanks to this, the device itself becomes learning object. Students can see inside the core and learn about the laboratory tool. Leraning tool and electronic components case was designed in 3D environment. The models were used to make some drawings for production. It was necessary to choose safe and good quality components to build suitable device. Most of the production was made by handicraft while some details were producted by different manufactures. The device working surface and electronic component shells were laser cut. The price for the device was calculated after finishing the assembling and it was estimated around 570 euros. Only components and laser cut prices were taken into account in the price calculation. The produced device price was compared to purchase products prices. It was clear that construced laboratory tool is in the same price range as the cheapest purchase product. The device instructions were also made. There is a guide which explains how to use this learning tool correctly and safely. There is also a guide which explain how to maintain this device and how to replace electronic elements in the core. In the future it is possible to design a programmable controller to make experiments with transistros.

Item Type: thesis
Advisor: Olev Rand
Co-advisor: Tanel Jalakas
Subjects: Mechanical Engineering > Electrical Engineering and Electrical Equipment > Electronics
Divisions: Institute of Engineering > Electrical Engineering
Depositing User: Karl Kalmet
Date Deposited: 07 Jun 2018 12:18
Last Modified: 27 Aug 2019 08:17
URI: http://eprints.tktk.ee/id/eprint/3799

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