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GOUVINHAS, REIDSON PEREIRA. "DEVELOPMENT AND TESTING OF VISCOUS DAMPERS FOR STEPPER MOTORS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 1991. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=19114@1.
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COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOREste trabalho tem como finalidade apresentar o desenvolvimento de dois protótipos de amortecedores viscosos utilizados na atenuação das oscilações em motores de passo. É apresentada a metodologia para observação do desempenho dos amortecedores frente diversas condições de acionamento e uma análise dos resultados obtidos.
The present work describs the development of two viscous damoers intended to reduce the oscilations which are common in step motors. The work also present the methodology to observe the performance of viscous dampers in many situations and the experimental results obatained.
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Bendaña, Yuri Roberto. "Time-optimal motion control of two-dimensional linear stepper motors." Thesis, Massachusetts Institute of Technology, 1993. http://hdl.handle.net/1721.1/12467.
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Hořák, Jan. "Řízení krokových motorů se zpětnou vazbou." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-221247.
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The theme of this thesis is the design and optimization of algorithms for controlling stepper motors with feedback by measuring the BEMF. The emphasis was on self-management stepper motor current depending on the load. To verify the algorithm was designed and built sample devices with integrated circuit NCV70514 from ON Semiconductor. The result is a sample device, the control program and algorithm to control a stepper motor.
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Adolfsson, Mattias. "Developing a Graphical Application to Control Stepper Motors with Sensorless Load Detection." Thesis, Uppsala universitet, Institutionen för informationsteknologi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-452735.
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For positioning of linear stages in absolute coordinates, there is a general need to find a reference position since the initial one is unknown. This is commonly called homing. To reduce costs and facilitate assembly, homing can be performed without additional sensors, known as sensorless homing. This thesis delves into sensorless homing, specifically with respect to stepper motors, and develops a graphical application for control of them. The commercial technology StallGuard is applied inconjunction with exploration into how it – and sensorless load detectionin general – functions. The resulting graphical application can be used to configure the stepper motors, perform homing using StallGuard, and automatically tune StallGuard to work despite varying conditions. In addition, rudimentary sensorless load detection independent from StallGuard is developed, demonstrating how it could work in practice. Testing shows homing with StallGuard resulting in a position within a ±5μm window in 94% of cases, less than 1/7 the width of an average strand of human hair. Additionally, homing is easily performed with a single button press from the graphical interface, with optional additional configuration available.
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Baco, Joseph C. "A flexible development system for stepper motor based electro-mechanical subassembly design /." Online version of thesis, 1994. http://hdl.handle.net/1850/11982.
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Kučera, Vítězslav. "Modernizace řídícího CNC systému frézky EMCO." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417576.
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This master´s thesis deals with the modernization of the EMCO milling machine control system. The theoretical part is focused on the basic description of CNC machine and current state of EMCO milling machine control system. The main point of this thesis is new control system design for given milling machine, when the proposed variants are described and compared according to construction and price. The one variant is selected that best suits the specified parameters. Also, in the TwinCAT development interface from Beckhoff the new control system is created and described in the end of this work.
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Bergman, Joel, and Johan Lind. "Robot Vacuum cleaner." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-264502.
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Although a robot vacuum cleaner is a well-known product, development is still interesting. Better working sensors and more sophisticated algorithms and sensors are used in new cleaners. The purpose with this thesis was to learn more about different sensors, algorithms, and designs of robot vacuum cleaners, to try ideas and to find improvements to implement on the demonstrator. The initial work was to make a market investigation to find customer needs and expectations. Also making a rough design and layout for the mechanical and electrical system. The budget for the demonstrator was 1000 SEK. Using laser cut plastic sheets, 3D printed parts, and receiving motors for free, costs did not exceed budget. Literature and theses in the area of interest were studied to find answers to some of the research questions. The theses studied subjects such as driving pattern and designs to find back to charge station. Some ideas for driving patterns were implemented on a demonstrator. The development method used was iteration of finding useful information, testing components, codes and also the complete demonstrator. The components used were DC motor, stepper motors, ultrasonic sensors, Arduino mega micro controller, switches and AA batteries. The different components required different voltage and the stepper motors used driver cards.Även om robot dammsugare är en välkänd produkt är produktutveckling fortfarande intressant. Bättre sensorer och mer sofistikerade algoritmer och sensorer används i dammsugare. Syftet med denna avhandling var att lära sig mer om olika dammsugare, algoritmer och konstruktioner av robot dammsugare, för att prova idéer och möjliga hitta förbättringar att implementera på demonstranten. Det första arbetet var att göra en marknadsundersökning för att hitta kundens behov och förväntningar. Även att göra en grov design och layout för det mekaniska och elektriska systemet. Budgeteringen för demonstranten var 1000 kr. Kostnaderna översteg inte budgeten eftersom vi använde oss av laser skurna plastplattor, 3D-printade delar och erhöll motorer utan kostnad. Sex olika avhandlingar studerades för att hitta svar på några av frågorna. Avhandlingarna studerade ämnen som körmönster och mönster för att hitta tillbaka till laddstationen. Vissa idéer för körmönster implementerades på demonstranten. Den använda utvecklingsmetoden var iteration av att hitta användbar information, testa komponenter, koder och även den fullständiga demonstranten. De komponenter som användes var likströmsmotor, stegmotorer, ultraljudssensorer, Arduino mega-mikrokontroller, strömbrytare och AA-batterier. De olika komponenterna krävde olika spänningar och stegmotorn använder ett specifikt drivkort.
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Hynčica, Tomáš. "Příprava scény pro detekci elektronických součástek." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218586.
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This work describes development of control hardware and software for automatic production of tuning fork with tip for atomic force microscopy (AFM). A specialized device implementing the problem is developed and tested. The advantage of the proposed solution is the ability to produce the tuning forks with constant parameters, which is an important condition for successful work with the microscope.
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Menšík, Martin. "Konstrukce navíječky kompozitního izolátoru." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-382124.
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The aim of this master thesis is the construction of a single-purpose machine used for reeling of composite insulator. In the first part is described the technology of reeling completed by the analysis of used components. Based on the findings, the final constructional version with necessary calculations is stated. The result of this thesis is a 3D model of the chosen design together with drawings and calculations of given parts.
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Silveira, Iago Camargo. "Projeto de um manipulador robótico cilíndrico de cinco eixos atuado por motores de passo." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2018. http://hdl.handle.net/10183/182286.
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Este trabalho contempla o projeto de um manipulador robótico cilindro atuado por motores de passo com cinco juntas de atuação. As etapas do projeto do robô, que tratam este estudo, foram divididas em: projeto mecânico; modelagem matemática; projeto do controlador; e simulações. O projeto mecânico apresenta uma proposta de configuração e dimensionamento mecânicos que supre a demanda exigida para a operação analisada. O modelo matemático apresenta as características elétricas e mecânicas do atuador e as características mecânicas do robô. O projeto de um controlador linear é realizado por meio da alocação dos polos do sistema em malha fechada através da realimentação dos estados de posição e de velocidade angulares do rotor unidos a um integrador do erro de posição angular. Para o primeiro grau de liberdade, por conta da variação do momento de inércia de massa associado a essa junta, um controlador com ganhos parametrizados foi projetado, no qual os ganhos são calculados baseado no modelo matemático relativo ao momento de inércia de massa associado a essa junta. Por meio de simulações computacionais, avaliou-se o projeto dos controladores no movimento ponto a ponto dos cinco eixos de atuação e a variação do momento de inércia de massa sobre a primeira junta. Os resultados dessas simulações mostraram que os controladores propostos cumprem com a dinâmica desejada nos cinco graus de liberdade do robô.This work contemplates the design of a robotic manipulator, which is operated by a stepper motor with five actuation joints. The robot design steps were divided into: mechanical design; mathematical modeling; controller design; and simulations. The mechanical design presents a proposal of mechanical configuration and sizing that supplies the required demand for the analyzed operation. The mathematical model presents the electrical and mechanical characteristics of the actuator and the mechanical characteristics of the robot. The design of a linear controller is accomplished by allocating the poles of the closed loop system by states feedback of the position and angular speed of the rotor attached to an angular position error integrator. For the first degree of freedom, due to the variation of mass moment of inertia associated with this joint, a controller with parameterized gains was projected, in which the gains are calculated based on the mathematical model related to the mass moment of inertia associated to this joint. By means of computational simulations, we evaluated the design of the controllers in the point-to-point movement of the five actuation joints and the variation of the mass moment of inertia on the first joint. The results of these simulations showed that the proposed controllers comply with the desired dynamics in the robot’s five degrees of freedom.
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Naser, Tim, and Stavros Ntouvas. "Gobi : Automatic sand-spreading robot." Thesis, KTH, Mekatronik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-296306.
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The purpose of this report was to research through the construction of a prototype the technical challenges associated with creating a robot that distributes sand on patios after snowfall. A robot that could complete this task should be able to know its position in an unknown terrain and traverse it in a predictable manner that allows for the even spread of the sand. In order to achieve stability and predictability of movement, stepper motor driven wheels were chosen as the steering method. The sand-spreading mechanism consists of a DC Motor connected to a 3D-printed disc with rectangular extrusions at its base. The wheels and chassis of the robot were likewise 3D-printed. Lastly, an Arduino MEGA board was the controller of choice.Syftet med denna rapport var att genom konstruktionen aven prototyp undersöka de tekniska utmaningarna för att skapa en robot som distribuerar sand på uteplatser efter snöfall. En robot som kan slutföra denna uppgift bör kunna känna till sin position i en okänd terräng och färdas på den på ett förutsägbart sätt som möjliggör en jämn spridning av sanden. För att uppnå stabilitet och förutsägbarhet för rörelse valdes stegmotordrivna hjul som styrmetod. Sandspridningsmekanismen består av en likströmsmotor ansluten till en 3D-utskriven skiva med rektangulära extruderingar vid basen. Robotens hjul och chassi var också 3D-utskrivna. Slutligen var ett Arduino MEGA-kort den valfriastyrenheten.
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Thif, Yaman, and Olle Rendlert. "AUTOMATED INK : CNC Tattooing Robot." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-279841.
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The art of tattooing has been around for centuries in human history and tattoos are still very popular in today’s society. Tattoos serve as a way to, for example, express people’s personalities, religious beliefs, or culture, and its growing popularity may lead to the need for more technological and automated alternatives. In this project, a computer numerical control plotter was built to investigate the possibilities of automation of tattooing, and the project focused on the possible limitations of performance and safety in an automated tattooing machine. The machine was built using two stepper motors connected with an H-Bot configuration that moved a gantry in the X and Y directions. A third stepper motor connected to a lead-screw was mounted on the gantry enabling movement in Z direction. Several tests were conducted in order to examine the performance of the machine. These tests were done using ink and whiteboard markers to draw different geometries on paper and the subject’s arm. The results showed limitations in the size of the tattoo as the machine could only draw on a flat surface and therefore had trouble adjusting to the uneven surface of an arm. The results also showed that the machine had some trouble drawing rounded geometries, such as circles, which meant that the circles, to a certain extent, got an elliptical appearance. It did however draw straight lines accurately. The main factors of this were believed to be a combination of sub-optimal assembly and the stepper motors being too weak to optimally operate with the H-Bot configuration. The safety risks were considered restricted when using a limit switch sensor and carefully calibrating the speed and movement in the Z-axis.Tatueringskonsten har funnits i århundraden och tatueringar är fortfarande mycket populära i dagens samhälle. Tatueringar fungerar bland annat som ett sätt att uttrycka människors personligheter, religion eller kultur. Dess växande popularitet kan leda till ett behov av tekniska och automatiserade alternativ. I detta projekt byggdes en CNC-plotter för att undersöka möjligheterna till automatisering av tatueringar och projektet fokuserade på möjliga begränsningar av prestanda och säkerhet hos en automatiserad tatueringsmaskin. Maskinen byggdes med två stegmotorer anslutna med en H-Bot-konfiguration som flyttade en brygga i X- och Y-riktningarna. En tredje stegmotor ansluten till en ledskruv monterades på bryggan vilket möjliggjorde rörelse i Z-led. Flera tester genomfördes för att undersöka maskinens prestanda. Dessa tester gjordes med hjälp av bläck- och tuschpennor för att rita olika geometriska former på papper och testpersoners armar. Resultaten visade begränsningar i tatueringsstorleken eftersom maskinen bara kunde rita på en plan yta och därför hade problem med att anpassa sig till den ojämna ytan av en arm. Resultaten visade också att maskinen hade vissa problem med att rita runda geometrier, så som cirklar, vilket medförde att cirklarna, till en viss grad, fick ett elleptiskt utseende. Den ritade dock raka linjer med bra noggrannhet. De största anledningarna till detta tros vara en kombination av bristfällig montering och att stegmotorerna var för svaga för att optimalt kunna fungera med H-Bot-konfigurationen. Säkerhetsriskerna ansågs vara begränsade vid användning av en gränslägesgivare och noggrann kalibrering av hastigheten och rörelsen i Z-led.
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GAUFFIN, HENRIK, and LUNDQVIST ISIDOR SÖDERMAN. "Claw Machine : Bachelors thesis in mechatronics." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-279793.
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A simple idea can have many different construction solutions and a claw machine is a good machine to try different solutions on. The goal of this thesis was to find out how a claw machine could be created as simple as possible and finding out which parts that were essential in constructing the machine. The claw machine’s shell was built using a laser cutter and details were 3D-printed. With 4 metal rods and two stepper motors the claw machine gantry worked properly. Finally a 3D-printed claw was made and attached to a servo motor and a stepper motor, a functional claw machine had been constructed. The conclusions of this thesis was that stop-sensors were not necessary in the making of the machine as the motors can’t move the claw further than to the edges and risk damaging the machine, step counting with proper belts is an alternative. Further conclusions was that 3D-printed bearings creates too much friction and therefore the gantry can’t operate, and using a fixed timing belt instead of a movable one is to prefer.En enkel idé kan ha många olika konstruktionslösningar, en klomaskin är ett exempel på en sådan idé som kan fungera som ett exempel att pröva olika konstruktionslösningar på. Målet med det här kandidatexamensarbetet var att undersöka hur en klomaskin kan uppnå sin funktion genom att ta reda på vilka komponenter som är viktigast för att konstruera maskinen. Klomaskinens skal laserskärdes och detaljdelar 3D-printades. Med 4 metallstänger och stegmotorer så fungerade klomaskinens ställning. Slutligen så var klomaskinen konstruerad. Slutsatser av det här kandidatexamensarbetet var att stoppsensorer inte var nödvändiga eftersom motorerna inte kunde föra klon längre än i det begränsade området och riskera att skada maskinen, stegräkning är ett alternativ med kuggremmar som inte slirar. Andra slutsatser var att 3D-utskrivna lager resulterade i mycket friktion och därmed en mekanism som inte fungerade och att använda en fix kuggrem är att föredra över en rörlig.
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Malaník, Petr. "Řízení manipulátoru pro snímání sítnice oka." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2020. http://www.nusl.cz/ntk/nusl-417300.
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To use the image of the retina for biometric or medical purposes, it is necessary that the image is of the highest quality and ideally covers the largest possible area. It is therefore necessary to move the sensing device to the most suitable position while ensuring its stability. A laboratory handling platform is used for this purpose. The platform is moved by stepper motors. A control board equipped with a microcontroller has been developed for their control, which allows very fine movements. The theoretical accuracy of the manipulator is up to 20 nm. Since it is necessary for sensing, to have proper retina illumination, the control system also includes adjustable illumination elements in the infrared and visible spectrum. The resulting system allows scanning of the retina of the eye from multiple angles and thereby effectively increase the area on which it is possible to further look for diseases or biometric features.
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Brabec, Luboš. "Systém automatického řízení technologického zařízení." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-220313.
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This bachelor's thesis deals with problematics of technological procedures and techniques for modification of microelectrodes with nanostructures. Furthermore, it describes a device needed for automated production of nanosensors, their properties and communication with computer. These devices communicate through RS-232 and USB interfaces.
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Jamal, Omar, Shahnawaz Khan, and Zainul Abideen. "PC Based wireless stepper motor control." Thesis, Blekinge Tekniska Högskola, Sektionen för ingenjörsvetenskap, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-4764.
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This project is about making an embedded system in order to control different functionalities of a stepper motor. The main functions of this stepper motor are to control the speed and direction. The whole hardware consists of two parts. One is the transmitter side and the other side is the receiver side. The transmitter side consists of PC, Encoder, a microcontroller and RF (Radio Frequency) transmitter. On the receiver side there is an RF receiver, a decoder, a microcontroller, a motor driver and a stepper motor. During this project a wireless system is going to be used to enhance the stepper motor operated manually. This system will actually adapt the requirements of the modern technology. With the help of this system one can control the speed of the stepper motor controller from remote sites. It can also control the direction of the stepper motor. In order to make it user friendly we make a GUI for controlling it from the PC. The data is sent and received via transmitter and receiver respectively. This data will be encoded and decoded and sent to the motor driver from where it is sent to the stepper motor in order to perform the operations.0734-954624
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Karlsson, Lina. "Sensorless Control of a Hybrid Stepper Motor." Thesis, Linköpings universitet, Fordonssystem, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-129433.
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Electrical drives are widely used in today’s society. They can be found in bothhousehold products and in the industry. One application where electrical drivesare used is in robots for mowing lawns. In the studied robots the motors in theelectrical drives used for propulsion are Brush Less Direct Current motors, BLDCmotors.The BLDC-motor has its maximum torque at high speeds and thereforea gearbox is needed. The gearbox is space consuming, add costs and consists ofmechanical parts that wear during use. Of interest is therefore to investigate ifthere are other electrical drives which can be used for propulsion.A motor who has its maximum torque at low speeds is the Stepper motor, andtherefore it is of interest to investigate if a stepper motor could replace the BLDCmotor.A drawback with the stepper motor is that it always consumes maximumcurrent and therefore a current controller is beneficial. Together with currentcontrol, speed control is needed to make the robot run at desired speed. To beable to perform an accurate current and speed control feedback from the motor isneeded. Information about the rotor angle and velocity can be used for the speedcontrol and the load angle can be used for the current control since the current isproportional to the load torque.To estimate the rotor angle and velocity a model has been developed. Themodel is based on fundamental electrical and mechanical equations and neglectsthe current and position dependence of the inductance and flux linkage. To completethe model three motor parameters, the maximum detent torque Tdm, themaximum flux linkage m and the friction constant B was determined. Parameterdetermination was done by linear regression and by using an Extended KalmanFilter, EKF. The result of the parameter determination were Tdm = 0.2152 Nm, m = -0.002854 Vs/rad and B = 0.01186 Nms/rad.The model is used in an EKF to estimate the rotor angle and angular velocity.The result of the implemented EKF seems promising. When making the rotortake a step in velocity from 3.927 rad/s to 7.85 rad/s the EKF estimates the stateswith only a small bias: 0.02 rad for the angle, 0.3 rad/s for the velocity, 0.005 Afor phase a current and 0.0004 A for phase b current.To estimate the load angle the Sliding Discrete Fourier Transform is used. Theexpected relation between the load torque and load angle is sinusoidal. The loadangle is calculated from data where the external load is between 0-2.5 Nm. Inthat area the load angle shows the expected sinusoidal appearance and the loadangle is in the area between 0.1 and 0.45 rad. At 3 Nm the rotor stalls and it isshown that the load angle varies between 0 and 2 rad when the rotor is stalled.
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Půhoný, Jan. "Návrh speciálního anténního rotátoru." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218591.
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This master's thesis deals with design electronics for an antenna rotator in two axis. There are designed and implemented drivers for two stepper motors. Was also designed and implemented control panel that allows manual control the rotator and remote control by PC via USB. At the same time created software for control panel and PC application for easy operation.
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CARDOZO, WILLIAM SCHROEDER. "STEPPER MOTOR CONTROL APPLIED TO A ROBOTIC MANIPULATOR." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2012. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=20783@1.
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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIROMotores de passo são os motores mais utilizados em aplicações de controle de posicionamento em malha aberta. Entretanto, as limitações desta forma de atuação têm fomentado o desenvolvimento de novas técnicas que incorporem o controle em malha fechada. Motores de passo possuem boa relação entre torque e custo, tornando-os atraentes para aplicações em manipuladores robóticos. Mas as técnicas tradicionais de controle de manipuladores elétricos, que normalmente assumem o uso de motores de corrente contínua, apresentam baixo desempenho quando aplicadas a motores de passo, mesmo com o uso de sensores de posição. A forma mais comum de controle em malha fechada de motores de passo exige um encoder diretamente acoplado ao eixo do motor, formando um sistema colocado. No entanto, o projeto de muitos motores de passo não permite este acoplamento. Nesses casos, é necessário instalar os encoders na estrutura do manipulador, separados dos atuadores, caracterizando um sistema nãocolocado, que tipicamente apresenta problemas de estabilidade. Este trabalho propõe uma técnica de controle que recebe a realimentação de um encoder, não diretamente acoplado ao motor, e gera uma sequência de pulsos para o driver do motor de passo. Esse trem de pulsos é calculado de modo a não exigir acelerações excessivas, e assim prevenir a perda de passo do motor. O modelo de um sistema robótico usando este controlador é desenvolvido e simulado em Simulink/MATLAB. Um manipulador robótico de seis graus de liberdade acionado por motores de passo é especialmente projetado e construído para validar a técnica de controle apresentada, controlado por um microcontrolador PIC18F2431. O manipulador desenvolvido é modelado, e sua dinâmica analisada através de simulações. Os experimentos comprovam a eficiência da técnica de controle proposta, resultando em uma precisão absoluta na extremidade do manipulador de 1,3mm e repetibilidade 0,5mm .
Stepper motors are used in most applications in open loop. However, the limitations of this type of control have encouraged the development of new techniques for closed loop control. Stepper motors have a good relationship between torque and cost, making it attractive for applications in robotic manipulators. But the limitation of traditional control deteriorates the performance of the manipulator. The most common form of closed loop control of stepper motors require an encoder directly coupled to the motor shaft. However, this is not always practical. In some cases, it is necessary to control the position of some system component that can’t be precisely known from the position of the motor. This work proposes a control technique that receives feedback from an encoder, not directly coupled to the motor shaft, and generates a sequence of pulses to the stepper motor driver. This pulse train is done so as not to require excessive accelerations, and thus prevent the loss of step. The model of a system using this controller is built using Simulink/MATLAB. A robotic manipulator of six degrees of freedom, using stepper motors, is designed and built to validate the presented control techniques, implemented on a PIC18F2431 microcontroller. The obtained absolute accuracy is 1,3mm and repeatability 0,5mm , proving the efficiency of the proposed control technique.
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Сердюк, Дмитро Андрійович. "Розроблення та дослідження мехатронних та роботизованих пристроїв підприємств легкої промисловості." Магістерська робота, Київський національний університет технологій та дизайну, 2021. https://er.knutd.edu.ua/handle/123456789/19463.
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Сучасне підприємство – це чітко налагоджена виробнича система, високопродуктивна робота якої залежить від автоматизації багатьох процесів, у тому числі і процесу безперервного транспортування. Популярним рішенням забезпечення безперервного потокового виробництва є конвеєр. Конвеєр є складовою частиною сучасного підприємства. Він встановлює і налаштовує темп виробництва, забезпечує ритмічність, сприяє підвищенню продуктивності праці і збільшенню пропускної спроможності виробництва. Розглянуто види крокових двигунів і завдання, щo вирішуються за дoпoмогoю крокoвогo приводу, дуже різноманітні. Крoкові двигуни встанoвлюються в пристрoях і механізмах, щo вимагають висoкої надійнoсті і точнoсті. Конструкція крoковoгo двигуна така, щo в ній відсутні деталі, щo знoшуються. Рoзглянуто деякі типoві застосування крoковoгo привoду. Дипломну магістерську роботу присвячено розробці та дослідженню конструкцій магазинного завантажувального пристрою для штучних виробів легкої промисловості, що дозволить прискорити робочий процес, заощадити площу, зменшити кількість задіяного персоналу, що, у свою чергу, відкриє більші можливості для оптимізації складських приміщень. Проведено аналіз існуючого конвеєрного обладнання та апаратного забезпечення ЧПУ, на основі якого було розроблено МЗП штучних виробів легкої промисловості.Современное предприятие – это четко отлаженная производственная система, высокопроизводительная работа которой зависит от автоматизации многих процессов, в том числе и процесса непрерывной транспортировки. Популярным решением обеспечения непрерывного поточного производства является конвейер. Конвейер является составной частью современного предприятия. Он устанавливает и настраивает темп производства, обеспечивает ритмичность, способствует повышению производительности труда и увеличению пропускной способности производства. Рассмотрены виды шаговых двигателей и задачи, решаемые с помощью шагового привода, очень разнообразны. Шаговые двигатели устанавливаются в устройствах и механизмах, требующих высокой надежности и точности. Конструкция шагового двигателя такова, что в ней отсутствуют изнашиваемые детали. Рассмотрены некоторые типичные применения шагового привода. Дипломная магистерская работа посвящена разработке и исследованию конструкций магазинного загрузочного устройства для искусственных изделий легкой промышленности, что позволит ускорить рабочий процесс, сэкономить площадь, уменьшить количество задействованного персонала, что, в свою очередь, откроет большие возможности для оптимизации складских помещений. Проведен анализ существующего конвейерного оборудования и аппаратного обеспечения ЧПУ, на основе которого разработан МЗП искусственных изделий легкой промышленности.
A modern enterprise is a well-established production system, the highperformance work of which depends on the automation of many processes, including the process of continuous transportation. A popular solution for continuous flow production is the conveyor. The conveyor is an integral part of a modern enterprise. It sets and adjusts the pace of production, provides rhythm, increases productivity and increase production capacity The types of stepper motors are considered and the tasks that are solved with the help of stepper drive are very diverse. Stepper motors are installed in devices and mechanisms that require high reliability and accuracy. The design of the stepper motor is such that it has no wearing parts. Consider some typical applications of the stepper drive. The master's thesis is devoted to the development and research of store loading device for artificial light products, which will speed up the work process, save space, reduce the number of staff involved, which in turn will open up greater opportunities for optimizing warehouses. The analysis of the existing conveyor equipment and hardware of CNC is carried out, on the basis of which the minimum wage of artificial products of light industry was developed.
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Fan, Yuanji. "3D Finite Element Analysis of a Hybrid Stepper Motor." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-278496.
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Hybrid stepper motors are being applied to more and more industrial regionsdue to their low cost compared with servo motors and prominent performance.Many industrial applications require accurate and eective methods for predictinga motor’s performance at the design stage. The geometry of the motorsis complicated and the magnetic saturation eect is also serious, giving riseto the diculty of understanding the transient behavior of the motors. Furthermore,the drive circuit and control algorithm are more sophisticated thanthose of traditional AC or DC motors. Lastly, the losses of the motors createthe rising of temperature, while the thermal eect and dynamic performanceaect each other.All these factors can be solved by simulating a hybrid stepper motor witha model combining the eect of electromagnetic field, control algorithm, andmotor loss together. In this thesis, a three-dimension (3D) finite elementmodel is developed in the software Maxwell for studying motor characteristics.The electromagnetic field is analyzed in a static state. The simulatedback electromagnetic force is verified by experiments. The feasibility of fullstepcontrol algorithm is analyzed. The vector control algorithm is applied tothe model through co-simulation of Simulink and Maxwell in Simplorer. The3D model is proved to be unrealistic for co-simulation. In the end, this thesissummarizes the modeling experience and gives recommendations on thetransient simulation of the motor.Hybridstegsmotorer appliceras i fler ochfler industriapplikationer tack vare deras låga kostnad och förbättrad prestanda jämfört med servomotorer. Många branschapplikationer kräver exakta och effektiva metoder för att förutsäga motorns prestanda redan i konstruktionsstadiet. Motorns geometri är komplicerad och den magnetiska mättnadseffekten är också betydande, vilket försvårar modelleringen. Dessutom är drivkretsen och styralgoritmen mer sofistikerad än den för traditionella växeleller likströmsmotorer. Vidare så resulterar motorns förluster i temperaturökningar vilka påverkar dynamiska.Alla dessa faktorer kan studeras genom att simulera hybrida stegmotorer med en modell som kombinerar effekten av elektromagnetiskt fält, kontrollalgoritm och motorförluster tillsammans. I detta examensarbete utvecklas en tredimensionell finit elementmodell i programvaran Maxwell för att studera motorns elektromagnetiska egenskaper. Det elektromagnetiska fältet analyseras i ett statiskt tillstånd. Den beräknade mot-EMK:n har verifieras genom experiment. Vektorkontrollalgoritmen tillämpas på modellen genom samsimulering i Simulink och Maxwell i Simplorer. Den tredimensionella modellen visade sig vara orealistisk för samsimulering. Till sist summeras uppnådaerfarenheter och rekommendationer för fortsatt arbete ges.
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Stout, Adrian John. "Instrumentation techniques and improved control of stepper motor driven machinery." Thesis, Open University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.312262.
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Abreau, Joaquin A. (Joaquin Arturo). "Dynamics modeling and analysis of a Sawyer linear stepper motor." Thesis, Massachusetts Institute of Technology, 1993. http://hdl.handle.net/1721.1/12642.
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Petrilak, Michal. "Řídicí systém pro dálkovou laserovou spektroskopii." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-219985.
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The work deals with the design of the control electronics for measuring set-up for elemental composition analysis using remote LIBS techniques. The electronics is designed in modular way for light interchangeability and variability. It consists of several separate plug-ins; each plug-in solves its part of the problem and communicates with others over the I2C bus. The work describes the basic components and concepts; a special care is taken to describe the modules for stepper motors control and for communication with focusing lens from Canon company.
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Zhou, Chuyao. "High Precision and Low-cost Stepper Motor Control for Industrial Implementation." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-235274.
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The industry is calling for a low-cost drive solution. The hybrid stepper motor isconsidered as a good candidate since it has much larger production than traditionalservo motor. In this thesis, the author comes up with a control solution of a hybridstepper motor based on a low-cost sensor, which reaches a high control resolutionwith a low cost. In the design, vector control is chosen and modified to be the controlstrategy of the motor. An extended kalman filter (EKF), neural network (NN)and linear regression harmonic compensation (LRHC) are evaluated to improve theperformance of the low-cost sensor. In the experiments, the solution is tested byrunning the motor to simulate an industrial implementation. The experiments givea positive outcome so that the feasibility of the low-cost solution for the industrialdrive has been proved.I industrin finns det ett behov av en lågkostnadslösning för motorstyrning. Denhybrida stegmotorn anses vara en bra kandidat eftersom den produceras i myckethögre utsträckning än den traditionella stegmotorn. I detta examensarbete har författarenföreslagit en kontrollösning för en hybrid stegmotor baserad på en lågkostnadssensor,vilken når en hög upplösning med en låg kostnad. Designen användersig av vektorstyrning för att reglera motorn. Ett EKF (Extended Kalman Filter),ett NN (Neural Network) och LRHC (Linear Regression Harmonic Compensation)har utvärderats för att förbättra prestandan av lågkostnadssensorn. I experimententestades lösningen genom att köra motorn för att simulera användning i industrin.Experimenten gav positiva resultat, så möjligheten för att använda lågkostnadslösningenför industriell styrning har bevisats.
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Chong, Ellis Fui Hen. "Aspects of induction motors analysis using time-stepped finite element methods." Thesis, University of Cambridge, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.620705.
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Vavrík, Michal. "Návrh a implementace řídícího programu pro CNC obráběcí stroj prostřednictvím B&R Automation." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-416642.
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The aim of the diploma thesis is the robotization of a conventional milling machine to a CNC milling machine using a programmable logic controller. The theoretical part of the thesis contains a description of machine tools and industry 4.0, an overview of Optimum Maschinen and B&R Automation companies, including products, and a description of the G code programming language. At the beginning of the practical part, the selected hardware, its connection and tuning of motors are described. Furthermore, the practical part explains the method of motor control and processing of CNC programs in G code. The following chapters discuss the creation of industrial visualizations for machine control and digital twin for testing purposes. The conclusion describes the evaluation of the results and indicates the possibilities for future expansion of the machine and its implementation in an automated cell in the sense of industry 4.0.
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Wallin, Mattias. "Multisensor fusion and control strategies for low cost hybrid stepper motor solutions." Thesis, Luleå tekniska universitet, Signaler och system, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-65862.
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This thesis has explored if it is feasible to produce a good estimation of the rotational position of a stepper motor by using sensor fusion schemes to merge a sensorless position estimation (based on the back electromotive force) with the measurement from a magnetic rotational position sensor. The purpose was to find a cheaper alternative for position feedback in closed loop control from conventionally used rotational encoders and resolvers. Beyond the sensor fusion a suitable position control logic was also developed to verify the concept of a low cost closed loop hybrid stepper motor solution for high precision position applications. The sensor fusion and position control were simulated offline to first test the feasibility of the implementation, after which laboratory tests were performed to assess online performance. The extended Kalman filter implemented improved the performance of the magnetic rotational position sensor which was used exclusively at lower speeds (between 0-75 rpm) by decreasing its root-mean-square error by almost half from 0.0733 unfiltered to 0.0370 filtered (in mechanical degrees). When fusing both position signals at higher rotational speeds (75-400rpm) did the extended Kalman filter clearly improve position estimation accuracy compared to the single sources. It is not meaningful however to discuss the numeric improvement of the filter at these working points as this result is not conclusive but based on some fortunate conditions. This is because the two signals used for the fusion is diverging towards positive and negative error respectively for increasing rotational speeds making the fused estimate result in between. This basically means that the result from the fusion is outperforming two very bad signals, and is then not meaningful to use as a measure of how well the fusion is actually performing. Further work on the raw signals used for fusion need to be performed before a proper assessment on the fusion performance could be made.
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Lang, Stanislav. "Automatický tester HMI." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-219324.
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This thesis is dedicated to the automation of tests of the thermostats developed by the company Honeywell. The first chapter presents a problem of self-testing of thermostats, followed by a discussion of possible approaches to solutions. Attention is paid to testing the functionality of the HMI of thermostats, especially to the part of the system, that deals with activation of touchscteen, but no other part of the problem are omitted in the text. Discussions of the problematic passes into the design and implementation of specific design solutions. The selected design of 3D-router, which moves in three orthogonal coordinates and resembles to a coordinate drill for example. First, it describes the basic concepts of mechanic and electronic part of equipment, and subsequently is designed and implemented control electronics for mechanical activator HMI. Each of the electronics components are described in detail and values of parts are based on the calculation with the exception of finished parts. The proposal of the electronics follows the possibility of maximization of universality module for applications in similar applications. The functionality of the electronics is controlled by a microprocessor with a custom program that is described in the work. Source code of some the programs is not available because it is know-how of the company. Next part of the thesis deals with optimization of the moving of axes, optimization is done empirically by measuring. An important issue is compliance with the accuracy required position, also part of the work is devoted to the issue of calibration position. Finally is solved the continuity on the superior system. It is designed and implemented the upper layer of the communication protocol used in the company. Work is the solution of specific corporate award thesis. Although it is a very specific role of the works are generally applicable for other applications. In particular, the proposed electronic represents relatively universal controller for stepper motor control.
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Venhoda, Jaroslav. "Počítačové řízení vývojové zkoušky zbraní." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2018. http://www.nusl.cz/ntk/nusl-377068.
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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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Jašek, Dominik. "Vzdušný hokej - realizace a návrh automatického hráče." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-416670.
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This diploma thesis deals with the design and implementation of an automatic Air hockey player. In particular, a gaming table and a kinematic type of H-bot robot and electronics are designed. The movement of the robot is ensured by two stepper motors, which are controled by the Arduino Micro using timer interrupts. The thesis is improved by additional elements, such as goal detection using photoelectric sensors and automatic firing of the puck from the goal and others. The Air hockey robot was practically realized in cooperation with Ondřej Sláma.
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Hanulík, René. "Řízení CNC pískovačky." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2020. http://www.nusl.cz/ntk/nusl-413120.
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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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Ronquist, Anton, and Birger Winroth. "Estimation and Compensation of Load-Dependent Position Error in a Hybrid Stepper Motor." Thesis, Linköpings universitet, Reglerteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-129554.
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Hybrid stepper motors are a common type of electric motor used throughout industry thanks to its low-cost, high torque at low speed and open loop positioning capabilities. However, a closed loop control is often required for industrial applications with high precision requirements. The closed loop control can also be used to lower the power consumption of the motor and ensure that stalls are avoided. It is quite common to utilise a large and costly position encoder or resolver to feedback the position signal to the control logic. This thesis has explored the possibility of using a low-cost position sensor based on Hall elements. Additionally, a sensorless estimation algorithm, using only stator winding measurements, has been investigated both as a competitive alternative and as a possible complement to the position sensor. The thesis work summarises and discusses previous research attempts to adequately measure or estimate and control the hybrid stepper motors position and load angle without using a typical encoder or resolver. Qualitative results have been produced through simulations prior to implementation and experimental testing. The readings from the position sensor is subject to noise, owing to its resolution and construction. The position signal has been successfully filtered, improving its accuracy from 0.56° to 0.25°. The output from the sensorless estimation algorithm is subject to non-linear errors caused by errors in phase voltage measurements and processing of velocity changes. However, the dynamics are reliable at constant speeds and could be used for position control.
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Streit, Jakub. "Jednotka pro řízení motorů dávkovacích čerpadel." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-240949.
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The goal of this thesis is design of universal system for motor control. This device must be able to control at least 4 motors, stepper motors or DC motors. Wired, or wireless communication, using IEEE 802.15.4, is mandatory. The System is based on modular concept. The Basic modules are Control module, Communication module, Connection module and Power module. The system was tested in the control of fertilizer dosing pumps in the greenhouse
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Šikula, Radek. "Skenovací fotoeleasticimetrie." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-220216.
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This thesis deals with the polarization of the light and its use in the field of photoelasticity measurement. The theoretical part is divided into two sections. First the light is described as electromagnetic waves in the theoretical section. Further the polarization types are described and the principle of the photoelasticity is explained. Electronic is described in the second section of the theoretical part. In the frame of the experimental part electronic design is presented together with the program for the scanning device controller. The functionality of the device is tested in the last section.
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Raszka, Dan. "Modul řízení krokového motoru pro poziční systém přes Ethernet." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2018. http://www.nusl.cz/ntk/nusl-377014.
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This paper describes the design of Stepper motor controller module controlled over Ethernet for positioning system. Part of this work describes analysis of the assignment, design of modular circuit, choosing right components and prototype design of communication and power module. In another part each module is described with emphasis to modularity. It deals with description of manufactured prototypes and their tested paramethers.
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Tmej, Tomáš. "Elektronika a řízení CNC frézky." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417753.
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The diploma thesis focuses on the electronics design of a hobby CNC milling machine. There are analysed and described the individual electronic parts and components related to this problematic. Three electronics suggestions are made, these suggestions are compared. Then, one of these variants is selected and implemented. Next, is created a relevant PLC program to control the CNC milling machine with visualization for easy control.
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PATEL, TARPIT KAUSHIKBHAI. "MOTION-CONTROL SYSTEM OF BENCH-TOP CT SCANNER." Wright State University / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=wright1229708881.
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Smrž, Ondřej. "Pohon peristaltického čerpadla pro lékařské účely." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2012. http://www.nusl.cz/ntk/nusl-219377.
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This work is focused on the design of the peristaltic pump drive for medical purposes. Its initial goal is closer introduction of peristaltic pumps and stepper motors. Then the design of BLDC motor will be made and the use of this motor will be compared with stepper motor. Design of the BLDC motor will be made using RMxprt. Last but not least simulations of both types of motors for the peristaltic pump will be created in Simplorer. Finally, the program LabVIEW will be introduced and a program for controlling a stepper motor will be created.
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Armonas, Simas. "Geodezinių prietaisų pozicionavimo sistemos tyrimas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2009. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2009~D_20090708_141304-66230.
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Baigiamajame magistro darbe nagrinėjama ir modernizuojama Geodezijos institute naudojamo įtaiso, skirto geodezijos prietaisams kalibruoti, žingsninė pavara. Stende naudojama pavara nebeatitinka reikalaujamo tikslumo, ir neišvysto reikiamo greičio. Darbo tikslas – modernizuoti pozicionavimo pavarą (padidinti jos greitį ir tikslumą). Teorinėje dalyje aptariamas geodezijos prietaisų kalibravimo stendo veikimo principas, naudojama kalibravimo metodika, atliekamas žingsninio variklio dinaminių charakteristikų skaičiavimas. Eksperimentinėje dalyje pateikiamos principinė ir funkcinė modernizuotos pavaros valdiklio schemos. Taip pat nagrinėjamas pavaros valdymo algoritmas, pateikiamos esminės mikrovaldiklio programos dalys. Čia atliekama pavaros darbo režimų analizė, nagrinėjama mikrožingsnio svarba pavaros greičiui bei tikslumui. Modernizuotoje pavaroje naudojami moderniausi žingsninių pavarų valdymo metodai, pavaros tikslumas padidėjo 30 kartų.This postgraduate thesis is about analysis and modernization of positioning gear, used in geodesic equipment. Old gear used in the rig is very slow and not accurate. Mission of this work is to make gear faster and more accurate. The theoretical path consists of geodesic equipment calibration methods, principles of rig operation, analysis of stepper motor dynamic characteristics. Experimental path consists of: principal and function diagrams of stepper gear driver, program algorithms, and parameters investigation of all working modes of the gear. The most modern methods is used in renewed gear, the precision increased 30 times.
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Ondrák, Tomáš. "Mikročerpadlo pro účely medikamentózní terapie." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-233522.
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This doctoral thesis originated as a requirement of micropump for artificial heart with using a suitable type of electric drive. It is an interdisciplinary cooperation of FSI Brno, Department of Fluid Engineering of Viktor Kaplan, FEKT Brno, Department of Power Electronics and finally the doctors from Cardiology Medical Center in St. Ann’s Hospital. FSI Brno made mechanical solutions of micropump, FEKT Brno solved electric drive and Cardiologic Medical Center gave the knowledge of human anatomy. Work deals with design, creation and testing of various types micropumps for medicamentous using. In this thesis was suggested various solutions of electric drive for micropump, its structure and function. Work is primarily experimental in nature and is heavily supported by a creative approach in creating a variety of proposed solutions. Several proposals of micropump have been made with different types of electric drives (DC motors, hybrid stepper motor, piezomotors). Finally, from the technical and economical point of view was chosen the most suitable type of electric drive and it was created a functional prototype of the double-action pump and its properties were tested.
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Orolin, Jakub. "Systém pre sledovanie pohybujúcich sa objektov." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2019. http://www.nusl.cz/ntk/nusl-399481.
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The presented thesis deals with the design of a system capable of tracking the moving objects. The output of the thesis is the prototype layout of the device. Facility will be physically placed between the camera and the tripod in the dissertation and tested in real conditions. The role of this system is to automatically rolling the camera up the selected moving object.
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Ludva, Stanislav. "Návrh a výroba modulu pro řízení motorů na nízká napětí." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-317187.
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The aim of this diploma thesis is to design and implement a universal driver unit designed to control electric motors of small voltages – electronically commutated, DC and stepper. This involves creating topology and selecting appropriate components based on the required parameters. It also includes the manufacture of printed circuit board (PCB), soldering of the components and programming of the necessary functions. Thesis contains the analysis of three selected types of motors – the principle of operation, wiring and control. Testing of the control unit was performed at the end of the work.
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Persson, Linus, and Natalija Zivanovic. "Picasso : CNC plotter." Thesis, KTH, Maskinkonstruktion (Inst.), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-230244.
Full textAbstract:
In today’s society, CNC machines are used for various purposes.In this project, a CNC plotter is created to analyzehow the performance of the plotter differs when using twodifferent motors: a DC motor controlled by a potentiometerin the horizontal direction and a stepper motor in thevertical direction. A CNC plotter is built and used to dotests in order to answer the research question. The resultsshow that a DC motor with a potentiometer is more precisethan a stepper motor and the mean value of the relative errorsin the vertical direction is always higher. The valuesdiffer with 1 percentage point to 3 percentage points. Thedifference in the performance of the two motors depend onseveral factors and one of the main factors is considered tobe the fact that the stepper motor sometimes skips steps.I dagens samhälle används CNC-maskiner för olika ändamål.I detta projekt skapades en CNC-plotter för att analyserahur plotterns prestanda skiljer sig vid användning avtvå olika motorer: en DC motor kontrollerad av en potentiometeri horisontell riktning och en stegmotor i vertikalriktning. En CNC-plotter byggdes och användes för genomförandeav tester för att kunna svara på forskningsfrågan.Resultaten visar att en DC motor med en potentiometer ärmer exakt än en stegmotor och medelvärdet av de relativafelen i vertikala riktningen är alltid högre. Värdena skiljersig från 1 procentenhet till 3 procentenheter. Skillnaden iprestanda för de två motorerna beror på flera faktorer ochen av huvudfaktorerna anses vara det faktum att stegmotornibland hoppar över steg.
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Dostál, Jan. "Konstrukce vidlicové azimutální montáže astronomického dalekohledu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-229145.
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Purpose of this master´s thesis is the construction proposal of azimuth fork mount with load capacity to 20kg including both axes drives. The solution contains design options of azimuth fork mount, calculations, design proposal of the mount and drawings of the shaft, fork and the assembly.
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PERSSON, LINUS, and NATALIJA ZIVANOVIC. "Picasso : CNC plotter." Thesis, KTH, Mekatronik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-233002.
Full textAbstract:
In today’s society, CNC machines are used for various purposes. In this project, a CNC plotter is created to analyze how the performance of the plotter differs when using two different motors: a DC motor controlled by a potentiometer in the horizontal direction and a stepper motor in the vertical direction. A CNC plotter is built and used to do tests in order to answer the research question. The results show that a DC motor with a potentiometer is more precise than a stepper motor and the mean value of the relative errors in the vertical direction is always higher. The values differ with 1 percentage point to 3 percentage points. The difference in the performance of the two motors depend on several factors and one of the main factors is considered to be the fact that the stepper motor sometimes skips steps.I dagens samhälle används CNC-maskiner för olika ändamål. I detta projekt skapades en CNC-plotter för att analysera hur plotterns prestanda skiljer sig vid användning av två olika motorer: en DC motor kontrollerad av en potentiometer i horisontell riktning och en stegmotor i vertikal riktning. En CNC-plotter byggdes och användes för genomförande av tester för att kunna svara på forskningsfrågan. Resultaten visar att en DC motor med en potentiometer är mer exakt än en stegmotor och medelvärdet av de relativa felen i vertikala riktningen är alltid högre. Värdena skiljer sig från 1 procentenhet till 3 procentenheter. Skillnaden i prestanda för de två motorerna beror på flera faktorer och en av huvudfaktorerna anses vara det faktum att stegmotorn ibland hoppar över steg.
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Badínez, Lara Rodrigo Orlando. "Diseño y Simulación de un Instrumento para la Estimación de Torque de un Motor Paso a Paso." Tesis, Universidad de Chile, 2007. http://www.repositorio.uchile.cl/handle/2250/104584.
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Kamenec, Jan. "Automatizace procesu 3D zobrazování." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2012. http://www.nusl.cz/ntk/nusl-219526.
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The task of my thesis was to automate the process of 3D stacking. The work includes design of complex control board, that will serve as a control unit and provide a comprehensive function of mechanical displacement in combination with digital image acquisition. In addition, the electronics for controlling a stepper motor, PCB and the design. The result of this is a facility that provides automatic acquisition of images with different depth of field.
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Zobač, Evžen. "Návrh motorizovaného optického systému pro zaostření laserového svazku." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-401032.
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This diploma thesis deals with the structural and optomechanical design of automatization of focusing laser beam for a remote laser spectroscopy device. The chosen solution uses an active rangefinder and a rotary unit to control the change of the focus plane of the device's optic system. The dependence of the focus plane’s change on the shift of lens in the focus plane was practically measured. For proper control of the rotary unit, this dependency is needed. Structural parts were made based on the created drawing documentation. The structural parts were mounted in the existing assembly of the device together with the purchased components. The proposed solution enables a change of the optical system, for example, in order to obtain a more appropriate range of focal planes.
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Blahút, Jozef. "Automatická expoziční jednotka pro výrobu DPS." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318637.
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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.