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Stepper motor driver with feedback for positioning platform
Doležel, Michael ; Král, Vojtěch (referee) ; Barcík, Peter (advisor)
Tato bakalářská práce se zabývá návrhem a stavbou uzavřené regulační soustavy pro výšku a azimut optomechanické platformy. Cílem je porovnat rotační senzory a následně navrhnout kontroler pro krokový motor. Prototyp regulačního systému byl postaven s využitím platformy Arduino, řadiče krokového motoru DRV8825, krokového motoru NEMA-17 a hallového senzoru AEAT-9922 pro měření rotace. Prototyp dokáže otáčet krokovým motorem s rozlišením 0.056°, což je maximální přesnost řadiče DRV8825 při použití mikrokrokování 1/32. Deska finálního řadiče byla přepracována tak, aby zahrnovala rozhraní SPI-4 pro hallový senzor AEAT-9922. Deska obsahuje řadič krokového motoru L6470H s mikrokrokováním 1/128 a má rozlišení 0.014°.
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Design equipment for measurement the surface wettability
Šubrt, Kamil ; Andrš, Ondřej (referee) ; Houška, Pavel (advisor)
This paper describes the design of equipment for measuring the wettability of surfaces. Surface wettability is determined by analyzing the profile drops, in an image taken with a digital camera. After the equipment is required to automatically find and focus the analyzed drops, taking the image, measuring wettability and save the image analysis, including measurement results to a file for subsequent offline analysis and archiving. The proposed facility is designed as a three-axis manipulator. For the driving the axes are chosen stepper motors. A key factor in achieving the highest possible speed measurement is very smooth movement of the manipulator, which is achieved by controlling of motors in microstepping mode with very high resolution. Software entire system is designed in the NI LabVIEW development environment for image processing was used module NI Vision.
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Computerized Weapon Live Test
Venhoda, Jaroslav ; Kubíček, Michal (referee) ; Frýza, Tomáš (advisor)
The master thesis deals with the design of device used for gun prototypes testing purposes. It aims at electrical part of the design which controls a stepper motor which through mechanical gear initiates trigger of tested prototype periodically. The core of design consists of the DRV8711 integrated circuit which controls a stepper motor. The integrated circuit is using the microstepping driving technique. The main logic of designed device is controlled by PIC32 microcontroller unit which also communicates with PC through USB bus.
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Computerized Weapon Live Test
Venhoda, Jaroslav ; Kubíček, Michal (referee) ; Frýza, Tomáš (advisor)
The master thesis deals with the design of device used for gun prototypes testing purposes. It aims at electrical part of the design which controls a stepper motor which through mechanical gear initiates trigger of tested prototype periodically. The core of design consists of the DRV8711 integrated circuit which controls a stepper motor. The integrated circuit is using the microstepping driving technique. The main logic of designed device is controlled by PIC32 microcontroller unit which also communicates with PC through USB bus.
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Design equipment for measurement the surface wettability
Šubrt, Kamil ; Andrš, Ondřej (referee) ; Houška, Pavel (advisor)
This paper describes the design of equipment for measuring the wettability of surfaces. Surface wettability is determined by analyzing the profile drops, in an image taken with a digital camera. After the equipment is required to automatically find and focus the analyzed drops, taking the image, measuring wettability and save the image analysis, including measurement results to a file for subsequent offline analysis and archiving. The proposed facility is designed as a three-axis manipulator. For the driving the axes are chosen stepper motors. A key factor in achieving the highest possible speed measurement is very smooth movement of the manipulator, which is achieved by controlling of motors in microstepping mode with very high resolution. Software entire system is designed in the NI LabVIEW development environment for image processing was used module NI Vision.
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