Cavity measurements with dielectric

The EMDrive V4 got a modification.
I inserted a 3D-printed dielectric on the big end - which showed significant performance boost in another (not my) test on a 900 MHz thruster.
I recorded a 5 values/s sweep from 22.5 GHz to 25.5 GHz without dielectric and I´m just now recording the same sweep wiith the dielectric inside. I will post the data when it´s finished.

Ok, here is the comparison no_dielectric/with dielectric
Add. Info: Curve is named "Sensor", it´s arctan(IFQ/IFI), but it´s just the ADC values, so there is an overall characteristic which the curve is not normalized to.
In case you complain about not labeled axes again ;)

Discussions

willemstaal wrote 04/25/2016 at 07:54

Great results! You can also consider a piece of glimmer or mica as dielectric. As glimmer is a package of sheets that are easy detachable , you can experiment with different layer thicknesses. You can find glimmer in old heaters.. High power condensers still use it as dielectric.

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Marcus Menghini wrote 04/24/2016 at 14:36

If you got the chance, could you redo the test with a dielectric made of PTFE or HDPE? Thanks again!

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Paul Kocyla wrote 04/24/2016 at 14:39

And when do I sleep? I think I´ll run more tests on ABS and will meanwhile prepare the PocketQub.

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Marcus Menghini wrote 04/24/2016 at 13:13

Good work! Can you tell us what material you are using for your dielectric? Thanks!

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Paul Kocyla wrote 04/24/2016 at 13:23

It´s 3D-printed with ABS, 3mm thick

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Marcus Menghini wrote 04/24/2016 at 13:55

Thanks! Was it with full infill settings?

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Results V4 available

First test with dielectric

Discussions

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