This thesis revolves around how to verify that the new aircraft simulator that is currently under development at Saab Aeronautics functions as intended. Because the system is still under development, the assignment is about developing various suggestions on how to verify that the new simulator is working properly. After various test proposals have been developed for the system, I will put them to the test with the help of National Instruments software. I will also make a world study to compare how other companies develop their simulators.

This Thesis deals with proposal, implementation and testing of a program for detection of objects to be manipulated and a program for control of robotic arm Melfa RV-2AJ manipulating with these objects. The Theoretical part describes selected algorithms for object detection using a Basler camera and introduces options for controlling the robotic arm Melfa RV-2AJ. The Practical part focuses on development and implementation of a program in the LabVIEW Development Environment for object detection using LabVIEW module NI Vision Acquisition Software and NI Vision Builder for Automated Inspection. Furthermore it describes the development of a program for control of robotic arm Melfa RV-2AJ with use of the LabVIEW module for Mitsubishi robot control called Imaging Lab. The program has been tested by a set of testing tasks and the test results subsequently used for suggestions for functionality improvements.

This project aims to use the myRIO embedded device with programming development software, LabVIEW, for the education of automatic control in association with the course Control Engineering (Reglerteknik) in Uppsala University.  The myRIO is a portable reconfigurable I/O (RIO) device developed by National Instruments for students to use for designing control, signal processing, robotics, and mechatronics systems. It contains a Xilinx FPGA and a dual-core ARM Cortex-A9 micro-controller that can be programmed with LabVIEW (Laboratory Virtual Instrument Engineering Workbench).  The control system that the project is concerned with is to control a model elevator which, available for the project, is a cabinet driven by a DC motor up and down along two steel poles. It is a representative control system, containing all possible components of a feedback control system, i.e., controlled process, actuator, controller, sensor. The elevator (the controlled process) has three floors with pre-specified heights. The height is determined by an ultrasonic sensor (for feedback). The motor (the actuator) is controlled by a PID (proportional-integral-derivative) controller.  The specifications for the control system implemented are given beforehand, in particular, the parameters related to system performance such as stability, responsiveness and accuracy (or residual error), as well as real time display of operating information.  The motor driver (a H-bridge circuit) for the motor and the circuit for the information have been built. The myRIO is used to implement the PID controller, handle the set point specifying floor number, manage the sensor measurements. The whole elevator control system has been implemented and tested. The test results show that the control system works well and fulfills the given specifications. Further work on improvements for the project is suggested. The myRIO is shown to be an excellent device well suited for the education of control engineering.

Submitted by Eduarda Figueiredo (eduarda.ffigueiredo@ufpe.br) on 2015-03-06T14:22:24Z No. of bitstreams: 2 PPGEE_M_233_FABIANO_GABRIEL_2012.pdf: 6382648 bytes, checksum: 220d3a4caf3edf057e04f2335d6d108f (MD5) license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) / Made available in DSpace on 2015-03-06T14:22:24Z (GMT). No. of bitstreams: 2 PPGEE_M_233_FABIANO_GABRIEL_2012.pdf: 6382648 bytes, checksum: 220d3a4caf3edf057e04f2335d6d108f (MD5) license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Previous issue date: 2012-02-29 / Foi desenvolvido um medidor de impedância elétrica utilizando a técnica de detec ção sí ncrona (lock-in). Essa técnica utiliza um sinal de referência para detectar sinais elétricos na presença de ní veis altos de ruí do, sendo utilizada para medir potenciais elétricos ou correntes elétricas extremamente baixas. Isso ocorre quando se deseja medir condutâncias ou capacitâncias muito pequenas ou muito grandes. Para testar o conceito, o medidor foi implementado e caracterizado utilizando a técnica de instrumenta ção virtual com o aplicativo LabVIEW R. Foram realizadas medi ções experimentais e caracteriza ção do medidor com resistências e capacitâncias padrão. O objetivo do projeto e utilizar esse instrumento na implementa ção de um medidor de vazão multifásica pela técnica da correla ção. Diversas técnicas podem ser usadas para realizar a medi ção da vazão. Contudo, de acordo o ambiente e o tipo de ruído a ser medido, algumas são mais e cientes que outras. Isso acaba influenciando na contabilidade da medição. Escoamentos multifásicos são os que possuem a maior dificuldade de medição por serem compostos por mais de um tipo de ruído (água, óleo, ar etc). A medi cão de vazão está presente em nosso dia a dia na produção e distribuição de petróleo, postos de combustíveis, nas empresas abastecedoras de água e tratamento de esgotos, nas indústrias de bebida, entre outros. Ela e fundamental para o controle de processos e para tarifação. A exemplo da medição fiscal, para arrecadação de impostos.

Made available in DSpace on 2018-08-02T00:00:52Z (GMT). No. of bitstreams: 1 tese_3579_DissertacaoMestradoRogerioPassosdoAmaralPereira.pdf: 2728299 bytes, checksum: e217da2fb3a0b348476ec45ba6e4908f (MD5) Previous issue date: 2011-11-21 / Este trabalho tem como objetivo implementar o controlador preditivo multivariável DMC numa planta real e compará-lo com o PID multimalha. A aplicação prática é feita na planta piloto do IFES/Serra, onde se realiza o controle da pressão e do nível através da velocidade da bomba e da abertura da válvula. A modelagem do processo, o cálculo da matriz de ganhos relativos para determinar o grau de acoplamento das malhas, e a sintonia dos controladores PID multimalha são apresentados. As pré-sintonias dos PIDs são sugeridas através do simulador que compara o desempenho de vários métodos de sintonia comumente encontrados na literatura. No DMC a pré-sintonia é sugerida através de um simulador baseado em algoritmo genético. Em ambos os casos a sintonia final é ajustada manualmente de forma a melhorar o desempenho das malhas. As respostas da planta ao degrau usando os controladores PID multimalha e DMC são comparados com e sem restrições na abertura da válvula e na velocidade da bomba. Uma interface didática, desenvolvida com o software LabVIEW, é usada para interagir com o MATLAB e o controlador CompactRIO, permitindo uso das funções de otimização do MATLAB na implementação do controlador DMC.

This thesis mainly aims at application of principles of engineering technology in the field of molecular beam epitaxy (MBE). MBE is a versatile technique for growing epitaxial thin films of semiconductors and metals by impinging molecular beams of atoms onto a heated substrate under ultra-high vacuum (UHV) conditions. Here, a LabVIEW® (laboratory virtual instrument engineering workbench) software (National Instruments Corp., http://www.ni.com/legal/termsofuse/unitedstates/usH) program is developed that would form the basis of a real-time control system that would transform MBE into a true-production technology. Growth conditions can be monitored in real-time with the help of reflection high energy electron diffraction (RHEED) technique. The period of one RHEED oscillation corresponds exactly to the growth of one monolayer of atoms of the semiconductor material. The PCI-1409 frame grabber card supplied by National Instruments is used in conjunction with the LabVIEW software to capture the RHEED images and capture the intensity of RHEED oscillations. The intensity values are written to a text file and plotted in the form of a graph. A fast Fourier transform of these oscillations gives the growth rate of the epi-wafer being grown. All the data being captured by the LabVIEW program can be saved to file forming a growth pedigree for future use. Unattended automation can be achieved by designing a control system that monitors the growth in real-time and compares it with the data recorded from the LabVIEW program from the previous growth and adjusts the growth parameters automatically thereby growing accurate device structures.

The latest development in the measurement techniques has resulted in fast improvements in the instruments used for measurement of various electrical quantities. A common problem in such instruments is the automation of acquiring, retrieving and controlling the measurements by a computer or a laptop. In this study, nodal resistance measurement (NRM) system is developed to solve the above problem. The purpose of this study is to design and develop a compact electronic board, which measures electrical resistance, and a computer or a laptop controls the board. For the above purpose, surface nodal points are created on the surface of the sample electrically conductive material. The nodal points are connected to the compact electronic board and this board is connected to the computer. The user selects the nodal points, from the computer, between which the NRM system measures the electrical resistance and displays the measured quantity on the computer.

This master thesis describes the issue of the measuring and control system for the heat pump. In the first part of the thesis is described the principle of heat pump activity, its basic components. The second part contains the distribution of heat pumps according to the method of obtaining and transferring the heat. The following chapter contains the description of system status before the modernization. In the practical part of this thesis is the proposal and realization of new control and monitoring system including the description of individual components. In the conclusion of the thesis is a verification of the use of proposed control and monitoring system of heat pump for the measuring of its operational characteristics.

This thesis deal with detailed conception separation control of chemical solutions by high voltage supply pair. In the first part of solving is projected galvanic separation high - voltage supply from control system. Second part deal with on programming control algorithm in PLC AMiRiS99. Third part deal with communication PC – PLC and conception finished aplication.

The follow text describes National Instruments Company's program LabVIEW and bus GPIB. The main part of the text solves the motion and description of software, which was created by help of LabWIEV program for Automation Measurement System. In conclusion of this work are the demonstration and results of control measurements, which were generated by this measuring system.