Essays about: "magnetoresistance"

Showing result 1 - 5 of 8 essays containing the word magnetoresistance.

1. 1. Magnetic field separation for current prediction in three-phase systems : Regression-based current prediction

   University essay from Mälardalens universitet/Akademin för innovation, design och teknik

   Author : Sara Lenman; Sofia Blaad; [2023]
   Keywords : Alternating Current; Crosstalk Separation; Magnetic field sensors; Regression; Sensor technology; Three-phase system;

   Abstract : 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. READ MORE

3. 2. Combining the GW Approximation with the Hubbard I Approximation for strongly correlated materials

   University essay from Lunds universitet/Matematisk fysik; Lunds universitet/Fysiska institutionen

   Author : Torsten Strunck; [2019]
   Keywords : GWA; GW Approximation; HIA; Hubbard I Approximation; Hubbard-I Approximation; Hubbard model; DMFT; Dynamical Mean Field Theory; strongly correlated materials; electron correlations; solid state physics; Physics and Astronomy;

   Abstract : In this thesis, the GW approximation (GWA, Green's function G times screened interaction W) and the Hubbard I approximation (HIA) are combined in a non-self-consistent one-shot calculation to determine the electronic structure of a one-dimensional strongly-correlated model. The scheme was chosen to incorporate both screening effects through the GWA and strong on-site correlations through the atomic HIA. READ MORE

4. 3. Setup for residual magnetic field measurements in cryostats

   University essay from Uppsala universitet/FREIA

   Author : Carl Filip von Ehrenheim; [2018]
   Keywords : Cryostat; hall probe; magnetometer; pcb;

   Abstract : This thesis covers considerations regarding commercially availble magnetic field sensors and the design work and assembly of a 3-axis magnetic field sensor of Hall technology that is tested for use in a cryostat at the FREIA laboratory, Uppsala university. The assembled sensor needs to withstand cryogenic temperatures and a high vacuum environment. READ MORE

5. 4. High Accuracy Speed and Angular Position Detection by Dual Sensor

   University essay from Uppsala universitet/Fasta tillståndets fysik

   Author : Johan Östling; [2018]
   Keywords : Sensor; accuracy; camshaft; flywheel; speed sensor; pattern recognition; dual sensor; gmr; giant magnetoresistance; hall effect; universal; ferromagnetic;

   Abstract : For many decades there has been a need in many industries to measure speed and position of ferrous gears. This is commonly done by converting passing gear teeth from trigger wheels to electrical impulses to calculate speed and angular position. READ MORE

6. 5. Innovative AMR based magnetometer for space application : Simulation and Characterization of a multilayer solution

   University essay from KTH/Skolan för informations- och kommunikationsteknik (ICT)

   Author : Alberto Isernia; [2016]
   Keywords : ;

   Abstract : During the recent years, the space technology trend was pointing towards the miniaturization of all its components in order to achieve a smaller and lightweight satellite with low power and low noise components. A possible solution to this request can be given by the anisotropic magnetoresistance (AMR) based sensors which present good miniaturizability and low power consumption. READ MORE