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Automatic control of the high-resistance resistor decade in calibrator 9010
Bilík, Petr ; Sitta, Michal (referee) ; Šedivá, Soňa (advisor)
This bachelor thesis deals with automatic calibration of high-voltage resistence decade of calibrator 9010. The theoretical part deals with multifunctional calibrator 9010 developed by Meatest company, mainly with its high-voltage resistance decade. The other part of this work deals with Caliber. This is program for calibration of instruments. List of methods for determination of resistance decade and equations for device errors and uncertainty of measurement is included. The procedure of calibration high-voltage resistance decade is the result of the practical part. Output protocol from Caliber points to functionality of decade calibrator 9010.
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Programmable resistance decade
Pavliska, Vojtěch ; Sitta, Michal (referee) ; Havlíková, Marie (advisor)
Subject of this work is description of programmable resistance decade M632 from company Meatest. Description will include construction, functionality and practical usage. Principles are described on basis of real resistor and it‘s connection in electrical circuit. Next part is focused on most important components of M632 followed by part describing functional units and control of resistance decade. Last part focuses on measurement design of resistor and its dependence on frequency with Caliber programme.
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Outdoor Robot Hardware Design
Sitta, Michal ; Veselý, Miloš (referee) ; Žalud, Luděk (advisor)
This work starts with slightly more detailed description of Ackerman and differential steering. Next shows parameters of direct-current brush and brush-less motors and gear-boxes uses in robotics. Electro technical part show problems of control direct-current brush motor, design of DC-DC converter with integrated circuit MC34063, reading information about steering angle with potentiometer and speed with optical encoder. In the end of work is shown simple byte oriented communication protocol used between microprocessor and desktop PC.
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Wheeled-drive Robot Control
Sitta, Michal ; Veselý, Miloš (referee) ; Žalud, Luděk (advisor)
The aim of this thesis is to describe the electronics of autonomus outdoor robot called TIM2. TIM2 is a group project and only a part of the project is presented. First part this work is about chasses common used in robotics. Detailed description of each type of module used is described in this work. There is also described communication protocol. A controllers for front and rear axle are also described. One part of this work is measurement, it contains electronics characteristic of modules and measurement to describe quality of motor controllers. Last part of the document is about communication between modules and impact on the robot functionality in the case of failure of a module. Enclosure provides complete circuit diagrams, printed circuit boards, planting plans, lists of components for all designed modules.
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