Difference between revisions of "List of Suggested Experiments"
From EM Drive
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# Replace solid endplates with a circular grid design similar to the endplates used by Cullen in his 1950's waveguide experiments, or a mesh as the one used for the glass windows in home-microwave-ovens, having a spacing between mesh or grids small enough such that only wavelengths smaller than that can get through. Purpose: to allow convection through the fustrum, eliminate buoyancy, thermal jet effects, natural thermal convection currents, and other gas effects. | # Replace solid endplates with a circular grid design similar to the endplates used by Cullen in his 1950's waveguide experiments, or a mesh as the one used for the glass windows in home-microwave-ovens, having a spacing between mesh or grids small enough such that only wavelengths smaller than that can get through. Purpose: to allow convection through the fustrum, eliminate buoyancy, thermal jet effects, natural thermal convection currents, and other gas effects. | ||
# Place [http://en.wikipedia.org/wiki/Ferrite_(magnet) ferrite beads] in the fustrum, either one large one next to an endplate or a pattern of them along a line in the longitudinal direction.<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, having an axial magnetic field.</ref> | # Place [http://en.wikipedia.org/wiki/Ferrite_(magnet) ferrite beads] in the fustrum, either one large one next to an endplate or a pattern of them along a line in the longitudinal direction.<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, having an axial magnetic field.</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 magnetic permeability like cast iron or any ferrite.<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> | ||
| + | # Fill the fustrum with ammonia gas to emit at a 24GHz<ref>[http://forum.nasaspaceflight.com/index.php?topic=37642.msg1379801#msg1379801 Forum post by aero], in response to [http://forum.nasaspaceflight.com/index.php?topic=37642.msg1379763#msg1379763 Rodal's explanation of the history of maser development]. Purpose: To produce maser-like amplification inside the fustrum.</ref> | ||
# Separate resonance and attenuation chambers (proposed by WarpTech) | # Separate resonance and attenuation chambers (proposed by WarpTech) | ||
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== Experimental Measurement Setups == | == Experimental Measurement Setups == | ||
== References == | == References == | ||
<references/> | <references/> | ||
Revision as of 10:55, 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
Design/Shape Modifications
- Replace solid endplates with a circular grid design similar to the endplates used by Cullen in his 1950's waveguide experiments, or a mesh as the one used for the glass windows in home-microwave-ovens, having a spacing between mesh or grids small enough such that only wavelengths smaller than that can get through. Purpose: to allow convection through the fustrum, eliminate buoyancy, thermal jet effects, natural thermal convection currents, and other gas effects.
- Place ferrite beads in the fustrum, either one large one next to an endplate or a pattern of them along a line in the longitudinal direction.[1]
- Build small end plate out of Metglas or a similar material with high magnetic permeability like cast iron or any ferrite.[2]
- Fill the fustrum with ammonia gas to emit at a 24GHz[3]
- Separate resonance and attenuation chambers (proposed by WarpTech)
Experimental Measurement Setups
References
- ↑ Forum post by Rodal summarizing several prior posts. Purpose: to increase attenuation gradient in TE modes, having an axial magnetic field.
- ↑ 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.
