|
|
Precise measurement of semiconductors
Smělík, Martin ; Šebesta, Jiří (referee) ; Dřínovský, Jiří (advisor)
The aim of this bachelor´s thesis was design a laboratory workplace for precise measurement of the stability output parameters of semiconductors. The thermostat is also part of this workplace. The thermostat is maintaining a constant temperature measured semiconductor. The entire laboratory preparation is controlled by a computer via USB. The program is created in control environment Agilent VEE for automatic measurement that semiconductor components.
|
|
|
Automatic System for Load Characteristics of Power Supplies Measurement
Vojtek, Michal ; Dřínovský, Jiří (referee) ; Šebesta, Jiří (advisor)
The target of this work is create device, which will automatic measure values for find out loading characteristics of power supply with help of built-in electronic load. In case, that source of current supply will for example DC/DC convertor, measurement of input current and input voltage will be possible. Then there is no problem with determinate total efficiency of this power supply. Measuring system will be conected via serial interface of type USB with computer. It will be possible to save found out values with help of control program for nother processing. Control unit of whole system will be suitable microcontroller.
|
|
|
Wideband Amplifier Final Stage 5kHz - 1,5 GHz
Galajda, Jan ; Šebesta, Jiří (referee) ; Urbanec, Tomáš (advisor)
This work is focused on the problem of design of the wideband amplifier final stage, which is designed as a replacement for the old insufficient amplifier, which works in the frequency band from 5 KHz to 1.5 GHz. First part of the work is dedicated to theoretical introduction of the problem. Second part of the work describes the created matlab scripts for automatic measurement of the amplifiers parameters via SCPI commands. The third part describes choice of the new active element based on the measured parameters of the original amplifier.
|
|
|
Test modules for automated testing of gas boiler controllers
Herbrych, Vojtěch ; Vyskočil, Pavel (referee) ; Dřínovský, Jiří (advisor)
This thesis deals with the design and implementation of test modules for measurement and PWM signal generation and communication using OpenTherm, for automated testing of gas boiler control units at Resideo company.This work builds on an already developer facility containing a set of measurement and test modules designed for simple automated testing of developed and manufactured equipment. The reason for the designing and manufacturing the additional modules is to extend the existing test set, automate the additional testing process and the extend the existing module, that no longer meets the current requirements of Resideo´s test engineers. The existing and newly developed test modules are based on ARM microcontrollers with a Cortex-M core, which communicate with the higher/level system using the MODBUS protocol via the RS-485 communication interface. The entire test system is connected to the bus in parallel and behaves as a RESPONDER (formerly known as SLAVE). The parent system (usually a computer) behaves as a CONTROLLER (formerly called MASTER). The power supply of the modules is unified (24 VDC) and is implemented on the existing communication and power supply module. For both developed modules, a circuit diagram was designed and possibly parts of the problematic circuits were simulated. Then the firmware was developed and the functionality of the modules was verified. All the requirements of the Resideo assignment were met and the modules can easily be extended in the future with additional functions. It will be also possible to modify the already developed functions impemented in the modules.
|
|
|
Virtual commissioning of the one purpose measuring machine
Mour, Jiří ; Bražina, Jakub (referee) ; Štěpánek, Vojtěch (advisor)
This diploma thesis deals with the virtual commissioning of a single-purpose measuring station for measuring square-shaped plate components by a comparative method of measurement. The theoretical part deals with current methods of automatic measurement in industry and an overview of sensors for measuring length dimensions. The practical part describes the modification of the 3D model of the measuring station in the software NX Mechatronics Concept Designer and the structure of the PLC program in the software TIA Portal, including the mathematical procedure for processing measured data from the sensors. The visualization of the HMI control panel with screens for various modes of the measuring station was also processed.
|
|
|
Virtual commissioning of the one purpose measuring machine
Mour, Jiří ; Bražina, Jakub (referee) ; Štěpánek, Vojtěch (advisor)
This diploma thesis deals with the virtual commissioning of a single-purpose measuring station for measuring square-shaped plate components by a comparative method of measurement. The theoretical part deals with current methods of automatic measurement in industry and an overview of sensors for measuring length dimensions. The practical part describes the modification of the 3D model of the measuring station in the software NX Mechatronics Concept Designer and the structure of the PLC program in the software TIA Portal, including the mathematical procedure for processing measured data from the sensors. The visualization of the HMI control panel with screens for various modes of the measuring station was also processed.
|
|
|
Test modules for automated testing of gas boiler controllers
Herbrych, Vojtěch ; Vyskočil, Pavel (referee) ; Dřínovský, Jiří (advisor)
This thesis deals with the design and implementation of test modules for measurement and PWM signal generation and communication using OpenTherm, for automated testing of gas boiler control units at Resideo company.This work builds on an already developer facility containing a set of measurement and test modules designed for simple automated testing of developed and manufactured equipment. The reason for the designing and manufacturing the additional modules is to extend the existing test set, automate the additional testing process and the extend the existing module, that no longer meets the current requirements of Resideo´s test engineers. The existing and newly developed test modules are based on ARM microcontrollers with a Cortex-M core, which communicate with the higher/level system using the MODBUS protocol via the RS-485 communication interface. The entire test system is connected to the bus in parallel and behaves as a RESPONDER (formerly known as SLAVE). The parent system (usually a computer) behaves as a CONTROLLER (formerly called MASTER). The power supply of the modules is unified (24 VDC) and is implemented on the existing communication and power supply module. For both developed modules, a circuit diagram was designed and possibly parts of the problematic circuits were simulated. Then the firmware was developed and the functionality of the modules was verified. All the requirements of the Resideo assignment were met and the modules can easily be extended in the future with additional functions. It will be also possible to modify the already developed functions impemented in the modules.
|
|
|
Wideband Amplifier Final Stage 5kHz - 1,5 GHz
Galajda, Jan ; Šebesta, Jiří (referee) ; Urbanec, Tomáš (advisor)
This work is focused on the problem of design of the wideband amplifier final stage, which is designed as a replacement for the old insufficient amplifier, which works in the frequency band from 5 KHz to 1.5 GHz. First part of the work is dedicated to theoretical introduction of the problem. Second part of the work describes the created matlab scripts for automatic measurement of the amplifiers parameters via SCPI commands. The third part describes choice of the new active element based on the measured parameters of the original amplifier.
|
|
|
Precise measurement of semiconductors
Smělík, Martin ; Šebesta, Jiří (referee) ; Dřínovský, Jiří (advisor)
The aim of this bachelor´s thesis was design a laboratory workplace for precise measurement of the stability output parameters of semiconductors. The thermostat is also part of this workplace. The thermostat is maintaining a constant temperature measured semiconductor. The entire laboratory preparation is controlled by a computer via USB. The program is created in control environment Agilent VEE for automatic measurement that semiconductor components.
|
|
|
Automatic System for Load Characteristics of Power Supplies Measurement
Vojtek, Michal ; Dřínovský, Jiří (referee) ; Šebesta, Jiří (advisor)
The target of this work is create device, which will automatic measure values for find out loading characteristics of power supply with help of built-in electronic load. In case, that source of current supply will for example DC/DC convertor, measurement of input current and input voltage will be possible. Then there is no problem with determinate total efficiency of this power supply. Measuring system will be conected via serial interface of type USB with computer. It will be possible to save found out values with help of control program for nother processing. Control unit of whole system will be suitable microcontroller.
|
guest ::
