Národní úložiště šedé literatury Nalezeno 3 záznamů.  Hledání trvalo 0.02 vteřin. 
Stepper motor driver with feedback for positioning platform
Doležel, Michael ; Král, Vojtěch (oponent) ; Barcík, Peter (vedoucí práce)
This bachelor's thesis deals with designing and building a closed-loop control system for the altitude and azimuth axis of an opto-mechanical platform. The goal is to compare rotation sensors, and then design a driver for the stepper motor. The control system prototype was built using the Arduino platform, DRV8825 motor driver, NEMA-17 stepper motor, and AEAT-9922 hall effect rotational sensor. The prototype can rotate the stepper motor with a resolution of 0.056° which is the maximal accuracy of the DRV8825 driver with 1/32 microstepping mode. The board of the final driver was redesigned to include the SPI-4 interface for the AEAT-9922 hall sensor. This driver includes an L6470H stepper motor driver with 1/128 microstepping mode. This final board has a resolution of 0.014°.
Automatic exposure unit for PCB production
Blahút, Jozef ; Spáčil, Tomáš (oponent) ; Chalupa, Jan (vedoucí práce)
This diploma thesis deals with the issue of fast high-quality prototype production of printed circuit boards for the needs of the mechatronics lab. Within the scope of this thesis a prototype machine was proposed and created together with control software, which by the help of DLP projector and two stage axis allows to produce printed circuit board in relatively short period of time.
Automatic exposure unit for PCB production
Blahút, Jozef ; Spáčil, Tomáš (oponent) ; Chalupa, Jan (vedoucí práce)
This diploma thesis deals with the issue of fast high-quality prototype production of printed circuit boards for the needs of the mechatronics lab. Within the scope of this thesis a prototype machine was proposed and created together with control software, which by the help of DLP projector and two stage axis allows to produce printed circuit board in relatively short period of time.

Chcete být upozorněni, pokud se objeví nové záznamy odpovídající tomuto dotazu?
Přihlásit se k odběru RSS.