Sökning: "Phase measurement"
Visar resultat 1 - 5 av 349 uppsatser innehållade orden Phase measurement.
1. Juice/JDC ion measurement perturbations caused by spacecraft charging in the solar wind and Earth’s magnetosheath
Master-uppsats, Uppsala universitet/Institutionen för fysik och astronomiSammanfattning : In July 2031, a new chapter in the exploration of the Jovian system will begin with the arrival of the Jupiter Icy Moons Explorer (Juice) at Jupiter. Launched on April 14 2024 as part of ESA’s Cosmic Vision programme, the mission aims to study Jupiter and its icy Galilean moons Callisto, Europa, and Ganymede. LÄS MER
2. Effectiveness of Iterative Algorithms for Recovering Phase in the Presence of Noise for Coherent Diffractive Imaging
Master-uppsats, Göteborgs universitet / Institutionen för fysikSammanfattning : Methods of coherent diffractive imaging (CDI) rely on iterative algorithms to reconstruct the complex exit-surface wave (ESW) of the object being imaged from the measured diffraction intensity only. In this thesis we investigate by simulation the artifacts on reconstruction when noise are present in the measurement. LÄS MER
3. Surface functionalization of cellulose fibers and exploration of its influence in ion exchange chromatography
Master-uppsats, KTH/Fiber- och polymerteknologiSammanfattning : Kromatografiska metoder kan användas för en mängd olika tillämpningar, inklusive separation, rening och analys av biomolekyler och kemikalier. Membrankromatografi är en av de nya kromatografiteknikerna som expanderar snabbt eftersom den tillåter hög masstransport genom den stationära fasen, vilket resulterar i en mer tidseffektiv process. LÄS MER
4. Magnetic field separation for current prediction in three-phase systems : Regression-based current prediction
Master-uppsats, Mälardalens universitet/Akademin för innovation, design och teknikSammanfattning : Current controls the motion of a manipulator. The manipulators at ABB are powered by a three-phase alternating current system where shunt resistors are utilised to measure the current to the motors. Magnetic field sensors are instead investigated to eliminate issues with power losses, the number of components and the cost of the shunt resistors. LÄS MER
5. Assisted GNSS Positioning using State Space Corrections
Master-uppsats, Linköpings universitet/Institutionen för systemteknikSammanfattning : Classical GNSS based positioning has accuracy limitations due to many sources oferror. The error sources range from clock errors and orbit errors toerrors due to variations in atmospheric propagation delays. One way to improve GNSSpositioning is to generate real time corrections using a GNSS reference network. LÄS MER