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Completed TRL 4 (started at 4, targeting 4)
Implementation of the EDS on a transparent curved surface to demonstrate feasibility of the EDS for an astronaut helmet visor.
Implementation of the EDS on one of the two RASSOR camera lenses to remove dust from the lens during operations in Swamp Works Regolith Bin.
In the 3-D version of an Electrodynamic Dust Shield, the spatially dependent field is provided by the application of a ground layer beneath the substrate. Electrodes are all connected to the same power supply in a single phase (1-phase) configuration. The electric field gradient needed to remove particles from the surface is provided by the parallel ground layer separated by a dielectric. There are several benefits to this choice of electrode configuration such as: (1) The breakdown (as seen with two phase EDS) no longer appears across the surface, but through the dielectric. Not only would the base dielectric have a higher strength than an adhesive or glue, it would be much thicker and more robust. Surface breakdown is far more common than volume breakdown in materials; (2) The electrodes on the surface are all of a single polarity and can be connected electrically. Thus if an individual trace is cut, the EDS would function normally and the performance would remain unchanged; and (3) The ground plane provides a “safe zone” in which the large electric fields cannot penetrate which would be used for helmets, suits, etc.. to protect the astronauts.
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