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Měření výškové polohy těžiště vozidla / Measurement of Vehicle CG Height PositionFedra, Tomáš January 2010 (has links)
This diploma thesis deals with measurement of vehicle centre of gravity height position. All methods for measurement of CG height position are described in the first part. The second part deals with designing of device for measurement of CG height. This measurement device is analysed by Finite Element Method. The vehicle is tilt by hydraulic system. The third part shows the best tilt angle for minimal error of CG height. At the end, there is described a measuring procedure for designed device.
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Návrh dvouosé automatické vidlicové frézovací hlavy osazené elekrovřetem s aplikací pohonů Harmonic-Drive / Design of cutter head with Harmonic-Drive applicationTkadlec, Dušan January 2010 (has links)
This master´s work deal with design two axis cutter head with possible variants drive of axis. The part of this work is also technical– economics valuation of single variants, calculation torque and force from motor head and design taking head in two axis. Cutter head should be applicated to boring and cutting headstock given to type with posibility of adaptive exchenges spindle.
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Lineární jednotka s hydraulickým pohonem pro robot s paralelní kinematickou strukturou / Hydraulic linear drive for paralell kinematics structures of robotsVintr, Pavel January 2013 (has links)
This Master thesis deals with the design of linear unit with hydraulic actuator for the robot with parallel kinematic structure. One of the objectives is to get an overview of the differences related to characteristics of design and construction between serial and parallel kinematic structure (PKS) of the industrial robots, as a new type of technical objects in robotics. In addition the aim is to create an original structural design of linear unit, as the basic constructional assembly and operational node of robot with PKS, according to the specified input values, such as power, pressure, speed and stroke, important for the design of linear hydraulic actuator.
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Návrh nestandardních indukčtnostních a inkrementálních měřicích snímačů / Design of non-standard inductive and incremental measuring sensorsWeigl, Martin January 2013 (has links)
This diploma thesis consist of overview for position measuring methods and is mainly focused on design of non-standard inductive and incremental sensor. Specifications of those sensors is based on requirements set by MESING company. Also contains verification and testing measurement of completed sensor.
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Aktualizace Naegeliho metody třídy polohy pro oceňování stavebních pozemků v ČR / Update of Naegeli class method for valuing of building plots in the Czech RepublicFuksová, Romana January 2013 (has links)
The subject of this thesis is test the applicability respectively update of Naegeli class method for valuing of building plots in the Czech Republic, price fixing, comparing their ratio and comparing with prices of pricing maps of building plots. The work focuses on the determination of prices of building plots according to the applicable valuation regulations, in this case the chosen location Brno-město according to pricing map of building plots, on the determination of agreed pricing and valuation plots of Naegeli class method. These prices are compared to each other and in the end are designed the changes for the proportions of building plots by Naegeli class method for the respective classes.
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Transportní a šumové charakteristiky tranzistorů MOSFET / Transport and Noise Characteristics of MOSFET TransistorsChvátal, Miloš January 2014 (has links)
This doctoral thesis is focused on the analysis of transport characteristics of submicron and micron transistors MOSFET. The assumption is a constant gradient of concentration, which leads to the fact that the diffusion current density is independent of the distance from the source. Active energy was determined from temperature dependence. The proposed physical model made it possible to determine the value of access resistance between drain and source their temperature dependence. Based on the assumption that the divergence of the gradient of the current density in the channel is zero. IV characteristics of the transistor MOSFET are derived and conducted experimental monitoring current channel depending on the collector voltage for the series of samples with different channel lengths in a wide temperature range from 10 to 350 K. Information on the concentration of charge transport in the channel and the position of the Fermi level at the point of active trap, which is the source of RTS noise, is obtained from the analysis of the transport characteristics. Determining the concentration of charge transport and the position of the Fermi level is important because these variables determine the intensity of quantum transitions and their values are not the same throughout the length of the channel. It was experimentally proved from the analysis of the characteristics of RTS noise that concentration at the local channel decreases with increasing current at a constant voltage on the gate and a variable voltage at the collector. Further, the position of active traps of RTS noise was intended and it was found that this is located near the collector. Active trap is located at the point where the Fermi level coincides with energy level of the traps.
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Porovnání tržních cen nemovitostí s cenami zjištěnými porovnávacím způsobem podle oceňovacích předpisů / Comparasion of property market prices with prices discovered in a comparative way according to estimate regulationsKomosná, Milada Unknown Date (has links)
This thesis deals with a comparison of the market prices of Brno family houses. The compared prices are estimated using the comparative way based on the price regulations and using the comparative method. A new coefficient for the comparative method is proposed in the thesis. This coefficient takes into account the influence of the distance of the estimate property from the city centre in the connection with the position. One of the main reasons to introduce this coefficient was to obtain the best result when estimating the price, the result which is the closest to the required market price. The use of the coefficient of the global position may lead to better results of the price estimate, especially in bigger cities where this influence is revealed the most.
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Odhad polohy rotoru PMSM pomocí VF signálu / High frequency signal injection method for PMSM position estimationMoravec, Vojtěch January 2016 (has links)
This thesis is focused on the design of vector control of interior permanent magnet synchronous motors. The first part of this work deals with vector control transformations and mathematical modelling of synchronous motors. Furthermore, algorithms of sensorless control are discussed, especially HF injection sensorless methods. One of these methods was used for torque and speed control. Problem of phase delay caused by filters and it’s compensation is also discused. One of the HF injection sensorless method was implemented on both motors. The results of simulations in MATLAB/Simulink and tests of real motors on dSpace are included.
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Detekce aut přijíždějících ke křižovatce / Detection of the Cars Approaching the CrossroadVácha, Lukáš January 2016 (has links)
Traffic monitoring using computer vision is becoming the desired system in practice. It allows nondestructive installation and also is very useful in many applications. This thesis focuses on automatic detection of vehicles approaching to a crossroads. This work also includes description of selected methods for detecting moving vehicles and the way of tracking them. On the basis of these methods is designed application that is implemented and tested in different lighting and weather conditions and various direction of approaching vehicles.
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Solární koncentrátorový systém s automatickým natáčením / Solar Concentrator System with Automatic Tracking SystemŽák, Martin January 2017 (has links)
This master’s thesis is focused on current possibilities of solar energy utilization – especially on concentrating solar power systems – and their optimization using solar tracking systems to maximize energy gain. The thesis also deals with solar position algorithm and offers an Arduino based automatic dual axis solar tracker design which provides various solar devices the ability to pivot using stepper motors, DC motors or servos. The motion might be driven by calculated solar position or by actual illuminance.
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