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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Soubor měřicích úloh se stavebnicí RC Didactica / A file of measuring tasks using RC Didactica building kit

KOPECKÝ, Jan January 2015 (has links)
In my dissertation I look into different possibilities of an electrotechnical construction set RC Didactic. The thesis is primarily focused on demonstration of posibilities of the construction set on created tasks. During the processing of these tasks both hardware and software equipment of the construction set are used. Another topic which this thesis is dealing with are issues of application of existing tasks which are provided along with the construction set, than its parameters and projections of the construction set for aplication during classes and also didactical aspects of the construction set.
2

CNC řízení frézky / Milling machine CNC control

Krejčí, Jan January 2021 (has links)
This diploma thesis deals with rebuild of manual drill-mill machine BF20L into CNC mill machine, 3D model of that and eventual control using PLC. All axes are powered by stepper motors, with encoders, connected to control cards and industrial computer from company Beckhoff. For this control is made full switchboard, supplemented by electrical wiring diagram. Program control along with visualization is made in software TwinCAT 3. Drill-mill machine can be controlled manually or automatically by program.
3

Návrh zařízení pro demonstraci a testování produktu NCV7471 / Design of module for demonstration and testing of system basis chips NCV7471

Kresta, Martin January 2013 (has links)
Práce se zabývá návrhem automobilové elektronické řídicí jednotky (ECU) s funkcí partial networking definovanou normou ISO 11898-6. Cílem je navrhnout a vytvořit demonstrační ECU s použitím system basis chip NCV7471. Protože NCV7471 obsahuje standardní CAN transceiver, funkce partial networking je realizována pouze softwarem řídicí jednotky. Práce zvažuje možné způsoby realizace jak HW, tak SW části, tak aby byla zajištěna nízká spotřeba ECU v různých operačních módech, a snaží se sledovat současné trendy v automobilovém průmyslu.
4

Analýza ztrát v železe malého asynchronního motoru / Analysis of core loss of a small induction machine

Plíšek, Oldřich January 2018 (has links)
The aim of this master´s thesis is to analyze core losses of a small induction motor. Analyzed values are obtained from laboratory measurements, software analysis and 2D finite element method simulation. The theoretical part of this thesis consists of two parts. The analysis of the higher spatial harmonics presents in the induction motor and the analysis of core losses of the motor. Practical part consists of laboratory measurements according to ČSN. Measured values are used to calculate individual losses. The next part consists of creating a model for software analysis (Maxwell RMxprt). The generated model is converted into a 2D simulation environment (Maxwell 2D), where it is adapted to obtain values from the examined parts (rotor and stator teeth and rotor cage). Results of simulations at different loads are compared and analyzed from the point of view of higher harmonics.

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