Search for dissertations about: "laser probing"
Showing result 1 - 5 of 36 swedish dissertations containing the words laser probing.
-
1. Pulsed laser ablation studied using digital holography
Abstract : Pulsed digital holographic interferometry has been used to study the plume and the shock wave generated in the laser ablation process on different targets under atmospheric air pressure. A pulsed Nd-YAG laser system (pulse duration 12 ns) has been used both for ablating the material (wavelength 1064 nm) and for measurement (wavelength 532 nm). READ MORE
-
2. Laser-Induced Emission Techniques for Concentration and Temperature Probing in Combustion
Abstract : The work in this thesis is aimed at the development of temperature and gas concentration measurement techniques in laser diagnostics for use in combustion research. The techniques are developed as tools for the combustion community to meet future demands on combustion efficiency and legislation of exhaust gases. READ MORE
-
3. On Robot Control using Range Sensors : with Special Reference to Active Uncertainty Reduction
Abstract : This thesis addresses the problem of positioning robots relative to objects in the surrounding work space. The object's position and orientation (posture) are measured using a non-contact sensor on-board the robot. For gripping/docking tasks the goal posture is specified relative to the object and not in a fixed coordinate system of the robot. READ MORE
-
4. Multi-Dimensional Quantitative Laser-based Diagnostics - Development and Practial Applications
Abstract : Laser based optical diagnostic methods are routinely used in combustion research. Many of the more common approaches are based on illuminating a cross-section of the sample with a thin laser sheet. For example, by targeting an electronic transition in a molecule, its concentration within the plane illuminated by the laser sheet can be deduced. READ MORE
-
5. Infrared Laser-Induced Grating Techniques for Diagnostics in Reactive Flows
Abstract : AbstractThe work presented in this thesis is mainly focused on the development andapplication of infrared laser-induced grating techniques in order to measure the gasphase temperature and species concentrations in reactive flows. The two techniquesused for this purpose are laser-induced grating spectroscopy (LIGS) and degeneratefour-wave mixing (DFWM). READ MORE