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Torsion Test 2 - water damping

A project log for EMDrive/satellite

Developing a small fuelless microwave thruster

paul-kocylaPaul Kocyla 06/14/2015 at 05:206 Comments

Performed a second torsion test yesterday, this time with water damping to prevent oscillations.

A rod - bended on the lower end - is hanging into a water tank.


Unfortunately I wrecked my measurement notebook with some water from this setup, so it will take a while to either dry it and hoping it will work again or reinstalling the video software and some openCV tools on another computer to get the data out of the video (at least the timelapsed video is saved on USB-stick).

Data is coming soon :)

Here´s a preliminary picture of the setup:

Discussions

flux_capacitor wrote 06/15/2015 at 08:36 point

You should use oil instead of water for better damping.

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Paul Kocyla wrote 06/14/2015 at 16:37 point

Good to know, I was wondering why the oscilations are so big.
Th water damping works fine now. I found accidentally the right balance between our thrust (or what we hope is thrust) and the oscillations.

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kevinjpluck wrote 06/14/2015 at 16:27 point

Downloaded your data but there's no indication when the emdrive was activated. This would be very useful for any analysis!

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Paul Kocyla wrote 06/14/2015 at 16:37 point

Sorry, updated it now on the log.

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kevinjpluck wrote 06/14/2015 at 20:14 point

Great thanks!

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Michelle wrote 06/14/2015 at 14:28 point

This maybe of use as to why you might be seeing oscillations on your pendulum. Living in California we had suspended a string with a weight on it about 4 foot long. It would start to move and oscillate on its own. The reason was minor tremors and earthquakes would cause the pendulum to move (P and S waves) as the waves from the quakes would travel under it. The rest of the earth would move but the end with the weight would not until it recentered itself to earth's gravity.   I was surprised at the number of minor quakes.

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