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Design of the control device for vibrographic measurement
Weiss, Lukáš ; Čožík, Ondřej (referee) ; Levek, Vladimír (advisor)
This diploma thesis deals with designing of the control device for vibrographic measurement. The device is primary used in cooperation with MERCURY Real Time Tracking System. The main task of the device is time-controlled triggering of camera system. In the first step, the summary of basic information about technical diagnostic and vibrodiagnostic is reported. The second part describes vibrodiagnostic measurements with MERCURY system. The third part describes a hardware design of the device and functional blocks and its parameters. Next part provides a simple algorithm of the device operation and a communication protocol. Last part contains measured data of the realized device and vibrographic measurement with laboratory sample.
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Motion measurement by inertial sensors
Junasová, Veronika ; Šteffan, Pavel (referee) ; Levek, Vladimír (advisor)
This work deals with measuring specific types of movement in space using inertial sensors. It focuses on accelerometer, gyroscope and magnetometer. There is basic introduction to mentioned sensors, description of means of filtration their measurements and related mathematical part. The work contains design of board with selected sensors, description of sensors calibration, measurement of inclination and azimuth, optimalization of measurement, implementation of chosen filter. Functionality of measurement, calibration and filtration is demonstrated by results of measurement.
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Miniature Tracking Device
Šťáva, Radek ; Levek, Vladimír (referee) ; Macháň, Ladislav (advisor)
The main theme of this masters's thesis is to design and make a miniature universal tracking device. This device is primarily for tracking asset, pets or people. For detecting the position data is used GPS technology. Data transmission is carried out via the GSM network. The device is technically solved and realized with respect to miniature size, high battery life and with regard to resistance against water, dust and impact damage. It is selected unique design, suitable for hermeticaly closure of the entire facility. Due to hermetic closure there is any buttons, any connectors and the battery charging is wireless.
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Home wireless control system for electrical appliances
Sedlář, Tomáš ; Levek, Vladimír (referee) ; Čožík, Ondřej (advisor)
The bachelor's thesis deals with the hardware and software realization of a wireless system for controlling electronic devices in the household. Firstly, the work briefly describes automation in the home environment. Next, the general structure of the designed system is described more closely. Consequently, the project discusses the design of the master and slave device of this system including the suitable components selection. The following chapter deals with designing the printed circuit boards for each device. Finally, there is an outline of the proposed software for this system.
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The device for temperature sensors calibration
Tomíček, Pavel ; Novotný, Radovan (referee) ; Levek, Vladimír (advisor)
The goal of this thesis is to design a device that allows calibrating temperature sensors. The device is made of a thermal chamber with Peltier module. Part of this work discusses means of temperature measurement, control and regulation. This work describes design of circuit and PCB. The device can precisely control temperature and temperature profile. It can also automatically calibrate Pt100 and Pt1000 sensors. User can control the device either by interface on the device or from a computer. Temperature range inside the thermal chamber is from 7,5 °C to 115 °C with ±0,10 °C error.
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Li-Ion battery testing and diagnostics device
Musil, Milan ; Novotný, Radovan (referee) ; Levek, Vladimír (advisor)
This thesis deals with the design of the device for diagnostics Li-Ion cells. The device is devided into a control module and a battery module. The control module provides communication with the user, communication with the computer and data backup to the SD card. The battery module is used for charging, discharging and measuring cells.
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CNC milling machine control
Hanulík, René ; Levek, Vladimír (referee) ; Šteffan, Pavel (advisor)
The diploma thesis clarifies the issue of creating inscriptions on stone slabs. It describes some types of sensors, actuators, their physical principles and possibilities of their use. The work mentions the limitations and specifics of sandblasting, design solutions and implementation of equipment for patternless sandblasting.The functionality of the device is demonstrated and verified on illustrative examples.
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Multipurpose measuring device
David, Jan ; Žák, Jaromír (referee) ; Levek, Vladimír (advisor)
This thesis describes the design of portable multi-purpose measuring device with Microcontrollers from Microchip running on battery power, for displaying the measured signal uses a graphical LCD with a resolution of 240x128. The device is equipped with an oscilloscope and multimeter with auto range.
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Laboratory tool with power supplies
Grufík, Adam ; Novotný, Radovan (referee) ; Levek, Vladimír (advisor)
The aim of this work is to become familiar with different kinds of commonly used power supplies, measure and compare their properties and then design laboratory teaching board with multiple supplies. The designed instrument can be used for educational purposes and as a demonstration in the field of voltage sources.
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Measurement System for Etched Track Detector
Galbavý, Juraj ; Levek, Vladimír (referee) ; Novotný, Radovan (advisor)
The aim of this thesis is to design an algorithm for an automatic track counting of an image of etched track detector made of CR-39 polymer. Tracks are produced by alpha particles. Chemically etched detector is imaged using a microscope resulting in 64 images of segments on the surface of the detector. Circle shaped tracks in the images have to be detected and counted. This thesis evaluates the utilization of circle hough transform for circle detection. The final software should automate a detector track counting and should also account for defects in the image and contamination of detector surface. The software will produce a measurement report with a total track count in each segment.
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