I have recently built and tested a prototype gravitational wave generator which was designed to produce a thrust. This thrust has been measured successfully by suspending the device and tracking its movement using a laser and line-scan camera. The plot below shows a definite movement of the device when power is applied to it. It shows the rest state of the device for the first 20 seconds when no power is applied. At the 20 second mark, power is applied, causing the device to move a total of 4 pixels of the line-scan camera. The device starts returning to its normal position at the 40 second mark when the power was removed. To me, this is proof that the device is indeed generating a thrust!
To eliminate the possibility that the earth’s magnetic field was causing the motion, I pointed the device in four different directions: north, east, west and south. Neither direction made any difference. I also positioned the device so that the thrust was pointed towards the camera and away from the camera. This was done to eliminate the possibility of the device simply being an electromagnet that was attracted to the metal components of the camera or support platform.
The movement is small. The width of each pixel is 7.04um, resulting in a total displacement of about 1/35th of a millimeter. Using the pendulum force equation, the thrust was calculated to be 198 micro Newtons.
Details of the design and testing can be found at: https://www.researchgate.net/publication/351884132_Design_for_a_Gravitational_Wave_Generator
Just to notice, in most populated places on Earth the Earth magnetic field has strong, often strongest vertical component. Can some forces arising in the coax cable during the RF pulse matter? e.g. envelope electric or magnetic force pulsed heating..
Nikolay,
Thanks for the feedback. Heat is something that was on the back of my mind since the announcement of the failure of the EmDrive:
https://www.universetoday.com/150754/in-a-comprehensive-new-test-the-emdrive-fails-to-generate-any-thrust/
Turns out it was heating of the engine mount that was imitating thrust :-|
This is why I let the device rest for 20 seconds, then put power to it for 20 seconds, then remove power. The thrust seems to happen instantly and then drop instantly, where heat would take some time to build up and cool down. So, I can’t think of anything at the moment where heat would cause the device to move, but I will definitely look into it.
"At the 20 second mark, power is applied, causing the device to move"
Dear Peter,
I would have expected instantaneous rather than delayed response to power on and off. What is the thrust profile on power on/off when you dump RF output power into dummy loads instead of the antennas right at their feed points? I think that your feed cables may thermally deform due to electronic heating.
Regards, Jan
Johan,
Thanks for the input and question. I'm a bit confused with your first comment though. The thrust IS instantaneous. The device immediately starts moving as soon as the power is applied (at the 20 sec. mark). And then starts returning to normal after the power is removed (at the 40 sec. mark). the dummy loads is an interesting idea. I might have to try that. Currently, I am building newly designed loop antennas carved into printed circuit boards. Hopefully, that will generate more thrust.
Peter
"The device immediately starts moving as soon as the power is applied"
I woud expect instantaneous deflection of the wire suspension to a new equilibrium position according to the input power profile.
"The thrust seems to happen instantly and then drop instantly, where heat would take some time to build up and cool down."
That's what I just found in your May 31 post.
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