Difference between revisions of "List of Suggested Experiments"
From EM Drive
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== Design/Shape Modifications == | == Design/Shape Modifications == | ||
+ | # Replace solid endplates with a circular grid design similar to the endplates used by Cullen in his 1950's waveguide experiments. Purpose: to allow convection through the fustrum and minimize thermal jet effects. | ||
# Imbed [http://en.wikipedia.org/wiki/Ferrite_(magnet) ferrite beads] in the fustrum, either one large one on an endplate or a pattern of them on the sidewalls.<ref>[http://forum.nasaspaceflight.com/index.php?topic=37642.msg1380265#msg1380265 Forum post by Rodal] summarizing several prior posts. Purpose: to increase attenuation gradient in TE modes.</ref> | # Imbed [http://en.wikipedia.org/wiki/Ferrite_(magnet) ferrite beads] in the fustrum, either one large one on an endplate or a pattern of them on the sidewalls.<ref>[http://forum.nasaspaceflight.com/index.php?topic=37642.msg1380265#msg1380265 Forum post by Rodal] summarizing several prior posts. Purpose: to increase attenuation gradient in TE modes.</ref> | ||
# Separate resonance and attenuation chambers (proposed by WarpTech) | # Separate resonance and attenuation chambers (proposed by WarpTech) | ||
+ | |||
== Fustrum Material Variations == | == Fustrum Material Variations == | ||
# Build small end plate out of [http://en.wikipedia.org/wiki/Permeability_%28electromagnetism%29#Values_for_some_common_materials Metglas] or a similar material with high magenetic permeability.<ref>[http://forum.nasaspaceflight.com/index.php?topic=37642.msg1381091#msg1381091 Forum post by Flyby] referencing earlier posts. Purpose: to test implications of statements in Prof. Yang's paper regarding magnetic thrust forces being approx. 100x greater on the end plates than the side walls.</ref> | # Build small end plate out of [http://en.wikipedia.org/wiki/Permeability_%28electromagnetism%29#Values_for_some_common_materials Metglas] or a similar material with high magenetic permeability.<ref>[http://forum.nasaspaceflight.com/index.php?topic=37642.msg1381091#msg1381091 Forum post by Flyby] referencing earlier posts. Purpose: to test implications of statements in Prof. Yang's paper regarding magnetic thrust forces being approx. 100x greater on the end plates than the side walls.</ref> |
Revision as of 11:20, 28 May 2015
This page compiles suggestions for as-yet untested variations in experiment designs for EmDrive testing. When possible, links to the original suggestion and a brief description of the justification for this test are provided.
Note: For purposes of this list, the baseline for experimentation is considered to be a copper fustrum with either a magnetron or coaxial RF feed operated at approximately 2.45Ghz, similar to Shawyer's Feasability Study
Contents
Design/Shape Modifications
- Replace solid endplates with a circular grid design similar to the endplates used by Cullen in his 1950's waveguide experiments. Purpose: to allow convection through the fustrum and minimize thermal jet effects.
- Imbed ferrite beads in the fustrum, either one large one on an endplate or a pattern of them on the sidewalls.[1]
- Separate resonance and attenuation chambers (proposed by WarpTech)
Fustrum Material Variations
- Build small end plate out of Metglas or a similar material with high magenetic permeability.[2]
- Fill a 24Ghz fustrum with ammonia gas[3]
Experimental Measurement Setups
References
- ↑ Forum post by Rodal summarizing several prior posts. Purpose: to increase attenuation gradient in TE modes.
- ↑ Forum post by Flyby referencing earlier posts. Purpose: to test implications of statements in Prof. Yang's paper regarding magnetic thrust forces being approx. 100x greater on the end plates than the side walls.
- ↑ Forum post by aero, in response to Rodal's explanation of the history of maser development. Purpose: To produce maser-like amplification inside the fustrum.