Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"Spacecraft Charging"”.
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Kinetic Simulations of Spacecraft Charging and Plasma Interactions in the Solar Wind
… numerical studies are carried out to investigate spacecraft charging and plasma interactions in the solar wind. The physics of spacecraft charging in solar wind is determined by the mesothermal flow and the photoelectron sheath. In order to properly resolve both plasma flow and the photoelectron …
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Spacecraft charging and attitude control characterization of electrospray thrusters on a magnetically levitated testbed
… satellite propulsion. A thorough study of the spacecraft charging and attitude control performance of electrospray thrusters acting on a small satellite is presented. The experimental portion of the study employs a new type of magnetically levitated testbed to measure thrust, characterize …
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Planar Ion Probe for Low-Latitude Ionosphere/Thermosphere Enhancements in Density Cubesat Mission
… the ion saturation region, i.e. negative w.r.t. spacecraft chassis. Operating the Langmuir probe in the ion saturation region avoids excessive spacecraft charging on small spacecraft platforms, while also avoiding high-risk deployables. Specific emphasis is placed on minimizing the physical …
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A study of dusty plasma environment
… the design and development of the dust module in Spacecraft Plasma Interaction System (SPIS) as well as the validation process involved. The software is then used to study plasma behaviour and spacecraft charging in the vicinity of dust particles. Results presented shows the capability of the …
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Collisionless ion collection by a sphere in a weakly magnetized plasma
… calibrations, dusty plasma physics, or spacecraft charging. Recent simulations relying on the ad hoc designed code SCEPTIC have fully addressed the collisionless and unmagnetized problem for a drifting collector idealized as a sphere. SCEPTIC is a 2d/3v hybrid Particle In Cell (PIC) …
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Langmuir Probe Instrument Suite for Mesosphere Turbulence Experiment Mission
… measurement that is immune to low levels of spacecraft charging. Similarly, the multi-surface fixed bias Langmuir probe is a collection of three spherical probes, however these are biased at the same potential in the electron saturation region while each having a different metal electroplated …
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Design, Development, and Calibration of an Electric Field Probe for Use on Sounding Rockets
… of each conductor can also be referenced to spacecraft chassis to form a Floating Potential Probe (FPP), which provides insight to the spacecraft charging behavior: a helpful metric for other instruments on the sounding rocket. This thesis focuses on the process of creating an EFP/ FPP …
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Modeling Differential Charging of Composite Spacecraft Bodies Using the Coliseum Framework
… of plume modeling for geometrically complex spacecraft. This work integrates a charging module into DRACO. Charge is collected via particle impingement on the spacecraft surface and converted to potential. Charge can be stored in the surface, or added to a local ground potential. Current can …
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Dynamics of an Electrodynamic Tether System in a Varying Space-Plasma Environment
Electrodynamic tethers have a wide range of proposed applications in the fields of satellite propulsion and space plasma research. The fundamental purpose of this dissertation is to improve the understanding of the behavior of an electrodynamic tether (EDT) system in Earth's ionosphere. An …