The current generation of earth-based telescopes has been of great use to astronomers for the past decades. New fields of astrophysics like the search for and analysis of earth-like planets would however need telescopes with even better resolution. These telescopes are called Extremely Large Telescopes and an ongoing project to develop such a telescope is the Euro50 project. For the Euro50 telesco

When building a telescope, importance does not only lie on the optical performance. Keeping the entire structure stable is also of great importance. In the case of the Euro50, the secondary mirror cell will be located some 60 m above ground level, exposed of wind speeds up to 15 m/s. This makes the stabilization of the mirror cell to a dicult problem. However, it has to be solved. The main goal o

This master thesis work concerns fault detection and isolation (FDI) of an electro-mechanical servo using analytical redundancy. The purpose is to reduce the number of sensors used in today's fault detection schemes and at the same time keep the level of redundancy in the system. The report will start with a comparison between physical and analytical redundancy. Whichever design method that is

The content of this master thesis regards the implementation of a control system in RTLinux/Free, and the use of this for control of a straight track inverted pendulum. A controller developed on the hypothesis that the system is sampled with the sampling time ts will perform differently than expected if sampled with the sampling time t _= ts. If implemented in a regular operating system, the compu

This thesis describes the results of an investigation into the use of Subspace-based System Identification techniques in the field of Adaptive Control. The project aims included adaption of subspace algorithms for online use, proposal of new algorithms of adaptive control based on these algorithms, and analysis of properties of the proposed systems. The thesis includes reviews of various subspace

Image registration of X-ray images is used to correctly align the patient before the cancer tumour is treated with sets of high dose X-ray radiation. Before the first treatment, a simulated X-ray image is taken showing the best possible localisation of the tumour. From then on, after each of the radiation treatments of the tumour, a low dose of the X-ray theurapeutic radiation is used to take an i

When designing an automatic brake control system for a car it is important to have a mathematical model of the vehicle to base the design upon. Since careful modeling of the entire car would encompass far too many variables, the most care is usually taken to the wheels and the tyres, as those parts contain most of the dynamics influential to the process. During braking the tyres deform because of

This document details the investigation and implementation of a product intended for supervision and management of standard computer and office equipment. The product is run from inside the ABB OperateIT Platform, as an Aspect System. The Aspect receives its data through communication with the CIM Object Manger, as suggested in the WBEM Initiative. The document also details the WBEM Initiative and

The topic of this thesis is to identify a surface with robot force control. To achieve this a robot performing contact force control on a surface while it also follows a trajectory is needed. All experiments were performed in the robot laboratory at the Department of Automatic Control at Lund Institute of Technology. The robot used was an ABB Irb-2000 robot, equipped with a wrist mounted force and

We have used a robot and a camera to design and implement a system which is able to play the known game Scrabble. To make this possible we have constructed a robot system and a vision system. The vision system task is to find the position of the cubes. The robot system uses these positions to generate the trajectories. The feedback from the camera is used to correct the trajectory. That the system