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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.
71

Vývoj automatického analyzátoru vzorků uhlíku a síry ACS 820 / Development of an automatic analyzer samples carbon and sulfur ACS 820

Jaroš, Tomáš January 2017 (has links)
The thesis deals wiring design of automated analyzer ACS 820 for carbon and sulfur. Describes individually all parts and their functionality. Evaluates applicable control components. Thesis discuss design of safety circuit, that will secure safe use of instrument. Part of the thesis is realisation of electrical design and completing the control box.
72

Konstrukce navíječky kompozitního izolátoru / Design of composite isolator winder

Menšík, Martin January 2018 (has links)
The aim of this master thesis is the construction of a single-purpose machine used for reeling of composite insulator. In the first part is described the technology of reeling completed by the analysis of used components. Based on the findings, the final constructional version with necessary calculations is stated. The result of this thesis is a 3D model of the chosen design together with drawings and calculations of given parts.
73

Laserový řezací plotr ocelových plátů / Laser Plotter for Cutting Steel Plates

Dokulil, Marek January 2019 (has links)
This diploma thesis is divided into two main parts. The first section is dedicated to the history and development of the laser technology. The second part describes all individual types of laser technology which are used in the industry nowadays. The next section follows with the research of various laser devices which serve mainly as a cutting tool. This knowledge gathered in the previous part was used to create the next part including the own conception of the machine. The second half of this diploma thesis deals with a research of software available at the market today. Eventually, after summarizing the characteristics of each software, the new concept and implementation of own software are made. In the final section, there are mentioned the possible extension and available upgrades. The reader should be able to create his/her own conception of the laser device and software after reading and understanding this paper.
74

Modelování a implementace řídicího algoritmu 3D tiskárny / Modelling and Implementation of Control System for 3D Printer

Ševčík, Martin January 2019 (has links)
The content of the thesis is the modeling and implementation of the CNC control algorithm. This master thesis contains the description of issues of computer-controlled machines, the research of interpolation algorithms for control CNC machines and the modeling of the selected control algorithm with motor S-curve shaped speed profiles and simulation of chosen algorithms with S-shaped speed profiles in Matlab & Simulink.
75

Laserový řezací plotr ocelových plátů / Laser Plotter for Cutting Steel Plates

Dokulil, Marek January 2018 (has links)
This diploma thesis is divided into two main parts. The first section is dedicated to the history and development of the laser technology. The second part describes all individual types of laser technology which are used in the industry nowadays. The next section follows with the research of various laser devices which serve mainly as a cutting tool. This knowledge gathered in the previous part was used to create the next part including the own conception of the machine. The second half of this diploma thesis deals with a research of software available at the market today. Eventually, after summarizing the characteristics of each software, the new concept and implementation of own software are made. In the final section, there are mentioned the possible extension and available upgrades. The reader should be able to create his/her own conception of the laser device and software after reading and understanding this paper.
76

Nvrh a vroba optick©ho 3D scanneru / Construction and production of 3D optical scanner

BÄhnek, David January 2020 (has links)
The diploma thesis is focused on an optical method for 3D scanning. There is selected photogrammetry for creating 3D models. In the practical part, a mechanism for automatic photo capture is designed and manufactured and 3D printed with using a digital camera, Arduino microcontroller and stepper motors. There are proposed two methods of capturing photographs with which digital twins of reference objects are created. The result of the work is a functional 3D scanner. The next are evaluated used methods as well as the production costs and the time required by the operator when creating a digital copy of the object is listed.
77

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.
78

Umělá aorta pro demonstraci činnosti intraaortální balonkové kontrapulzace / Artificial aorta for activity demonstration of intraaortal baloon contrapulsation

Bičiště, Jan January 2009 (has links)
This dissertation work describes design and construction of simulated aorta device intended to demonstrate performance of the intra-aortal balloon catheter (IAB), and to test reaction of the contra-pulsation pump during simulated cardiac output in conditions of tachycardia, bradycardia and arrhythmia. The major part of the device is transparent plastic tube. The pressure pulses (waves) are generated inside this plastic tube to simulate real cardiac output. These pressure pulses are generated by step motor with membrane. The step motor is controlled by programmable control system AMiNi-E. Individual pressure pulses simulate cardiac output in conditions of tachycardia, bradycardia and arrhythmia. Required simulated cardiac output is selected by control switches. Generated pressure pulses are read by pressure sensor and are transferred to the control system of the configuration computer. Read data can be displayed as graphs in program Microsoft Excel. The intra-aortal balloon catheter (IAB) is inserted inside the aorta and is connected with contra-pulsation pump which on pressure pulse is responding.
79

Číslicově řízené dvouosé polohovací zařízení pro digitální fotoaparát / Digitally-controlled dual-axis positioning rig for digital camera

Hrubý, Michal January 2011 (has links)
This thesis introduces the construction design of two-axis positioning device to be used as panoramic head. Theoretical part explains parts of the device and in the practical part is the device assembled. The result is a complete positioning device for digital camera Canon EOS 500D and for similar camera.
80

Digitální zapisovač dat / Digital data recorder

Müller, Tomáš January 2010 (has links)
This thesis deals with method of measuring optical beam intensity, searching for communication system beam using stepper motor movement of the optical head and processing measured signal for displaying on PC. The basic theory of optoelectronics is shown here concerning the problem. There is elaborated main principles of photodetector and stepper motor mainly, which are main part of device. The second part of work is theoretical design of data recorder. All parts are described individually-their characteristics and conditions for correct usage. In the last part setup of device is explained, with the references to blocks of written programs. In the last part, main funcrions of system, its hardware managing and communication are described. At the very end of thesis, examples of measured data are presented.

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