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Found 3 essays matching the above criteria.

  1. 1. Inverse source modeling of roll induced magnetic signature

    University essay from Uppsala universitet/Avdelningen för beräkningsvetenskap

    Author : Erik Thermaenius; [2022]
    Keywords : inverse modeling; inverse; modeling; magnetic; signature; source modeling; tikhonov; roll; magnetic silencing; regularization; regularisation; induction; dipole; dipoles; Helmholtz; inversmodellering; magnetisk; signatur; källmodellering; rullning; rullningsinducerad; regularisering; dipol; dipoler;

    Abstract : Vessels constructed in electrically conductive materials give rise to frequency-dependent, induced magnetic fields when waves of water cause them to roll in the Earth's magnetic field. These fields, typically referred to as roll-induced magnetic vortex fields, are a component of the ship's overall signature, where signature refers to measurable quantities which can reveal or identify objects. READ MORE

  3. 2. Magnetic Moment Characterization for Small Satellites

    University essay from Luleå tekniska universitet/Rymdteknik

    Author : Alejandro Sans Monguiló; [2021]
    Keywords : small satellite; CubeSat; optical magnetic test bed; magnetic dipole moment characterization; residual magnetic moment; permanent magnet verification; magnetic measurement; Foresail-1; Helmholtz cage;

    Abstract : Small satellites are gaining popularity in a wide range of applications where attitude systems require high precision performance. One of the main sources of errors, in case of magnetic attitude control systems, is the residual magnetic moment (RMM) of the spacecraft. READ MORE

  4. 3. Test bench for Nanosatellite Attitude Determination and Control System (ADCS)devices : Design and manufacture of a Merritt Cage

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Alvaro Cano Torres; [2019]
    Keywords : Helmholtz; Merri􀆩; Cage; Test; ADCS; Nanosatellite; Magne􀆟c; Orbit; Propaga􀆟on; Weightlessness; Air; Bearing.;

    Abstract : Attitude Determination and Control System (ADCS) is often a complex system on-board any  satellite  which  needs  validation  and  testing  to  prove  its  operability  and  verify  its software  compatibility  with  hardware  and  other  subsystems.    One  failure  in  orbit  is extremely expensive in terms of cost and time due to payload preparation and launch. READ MORE