Essays about: "eddy currents"

Showing result 1 - 5 of 16 essays containing the words eddy currents.

  1. 1. Rock Magnetic Studies of Magnetite and Quartzite: Results at Ambient Conditions and From Diamond Anvil Pressure Experiments (~2 GPa)

    University essay from Uppsala universitet/Geofysik

    Author : Dimitra Daniil; [2021]
    Keywords : magnetic susceptibility; remanent magnetization; mDAC; AF demagnetization; NRM; IRM; ARM; magnetisk susceptibilitet; magnetisk remanens; mDAC; AF demagnetisering; NRM; IRM; ARM;

    Abstract : Numerous techniques are used to study the magnetic history and properties of rocks, which provides important data on the Earth’s interior. In this study we conducted a series of experiments on two different sample sets, comprising pure magnetite (Set1) and a mixture of magnetite-hemoilmenite-bearing quartzite (Set2), in order to gather information about their magnetic susceptibility and remanent magnetization. READ MORE

  3. 2. Reaction Wheel Performance Characterisation and Assessment of Electromagnetic Interactions with Magnetic Torquers

    University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Author : Leonie Sander; [2021]
    Keywords : Reaction Wheel; Magnetic Torquers; Electromagnetism; Space Mechanism; Attitude Control;

    Abstract : Having an in-depth knowledge on the performance characteristics of space mechanisms in flight operation, with special attention to nominal vs. anomalous performance, is vital for mission success. READ MORE

  4. 3. Model verification and common mode current analysis of grid connected three phase two level converters

    University essay from Lunds universitet/Industriell elektroteknik och automation

    Author : Simon Lindvall; Richard Haraldsson; [2021]
    Keywords : active filter; EMC; EMI; converter; common mode; differential mode; shunt active filter; parasitic elements; Technology and Engineering;

    Abstract : In this Master’s thesis an in-depth model of a shunt active filter for high frequency analysis is constructed. The purpose is to enable analysis of higher frequency behavior reaching 1MHz. Using the high frequency model, common mode currents can be simulated. READ MORE

  5. 4. Measuring resistivity in a contactless fashion

    University essay from Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

    Author : Jim Klintrup; [2020]
    Keywords : resistivity; magnetic; field; diffusive; eddy; current; coils; Physics and Astronomy;

    Abstract : The aim of this thesis work was to develop a rig to measure the resistivity of a metal sample. The initial testing of the rig would be done at room temperature and calibration of the setup would be done with aluminum samples and then metallic alloys would be studied. READ MORE

  6. 5. Communication Channel Measurement and Modeling for Inductive Wireless Power Transfer

    University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

    Author : Love Rosén; [2020]
    Keywords : Wireless power transfer; WPT; Qi Specification; Inductive coupling; Wireless charging; Channel modeling; Technology and Engineering;

    Abstract : Wireless Power Transfer (WPT) technology has experienced phenomenal success in the application of wireless charging of smartphones. With the Qi Specification becoming the dominant standard, wireless charging's convenience goes beyond cable-free charging to facilitate interoperability between chargers and devices from different vendors. READ MORE