Quote from: ThatOtherGuy on 04/20/2017 06:32 amNice critter; I suppose you'll also order some enclosure to host the board (and shield it) ? Or does the thing come with its own enclosure which you removed to show the board ?The board has shields over the RF input and main transistor/RF output (I have them removed in the above image). I do not think another shield over the entire thing is necessary.
Nice critter; I suppose you'll also order some enclosure to host the board (and shield it) ? Or does the thing come with its own enclosure which you removed to show the board ?
This is a second very simple wiring option that I am seriously considering, but I would need to purchase a $250 100W attenuator to make it work. The Windfreak NV signal generator has an onboard power detector that I have tested and it works very well. It also has well documented/commented software: https://windfreaktech.com/wp-content/uploads/docs/synthnv/serialcomm.pdf Would be a fairly simple matter to write new control software that monitors the reflected power while automatically adjusting signal frequency.
Quote from: Mezzenile on 04/20/2017 09:33 amQuote from: PotomacNeuron on 04/19/2017 06:42 pmThank you! I think if you keep moving the settings to other directions, you will find zero and negative positions. If so, draw a force_vs_direction plot, it may be evident that Lorentz force is at work.The fact that the test setup is oriented in the East - West direction means that the Earth magnetic field is roughly perpendicular to the flow of the DC portion of the electric circuit. The associated perturbative Lorentz force should be so close to its maximum. The fact that according to its orientation the action is mainly additive or substractive to the supposed EM-drive effect could be assessed by a test performed after a flip of the direct and return parts of the DC circuit or a flip of the frustum orientation.The force might be in its maximum, but it is the torque that is the main factor that influences the balance displacement. If the DC loop is in the vertical plane defined by gravity and the balance arm, when the arm is in East - West direction, we will see the thrust to be close to its minimum (zero, if the loop is perfectly in the said plane). This claim is supported both by experiment and by theory. The attached picture is a screenshot from may paper, https://arxiv.org/pdf/1510.07752.pdf, fig 5. In my experiment, when the arm pointed to the East, the thrust was much smaller than when it pointed to the North.Theoretically, the measured 'thrust' is related to the torque. When the said plane where the DC loop resides is parallel to the magnetic field (this is the case when arm points North - South), the Lorentz forces caused by currents in the two vertical lines of the loop point to opposite directions, and both are perpendicular to the plane, maximizing the torque. On the other hand, if the arm points East - West, the two opposite forces are in the same plane, minimizing the torque.
Quote from: PotomacNeuron on 04/19/2017 06:42 pmThank you! I think if you keep moving the settings to other directions, you will find zero and negative positions. If so, draw a force_vs_direction plot, it may be evident that Lorentz force is at work.The fact that the test setup is oriented in the East - West direction means that the Earth magnetic field is roughly perpendicular to the flow of the DC portion of the electric circuit. The associated perturbative Lorentz force should be so close to its maximum. The fact that according to its orientation the action is mainly additive or substractive to the supposed EM-drive effect could be assessed by a test performed after a flip of the direct and return parts of the DC circuit or a flip of the frustum orientation.
Thank you! I think if you keep moving the settings to other directions, you will find zero and negative positions. If so, draw a force_vs_direction plot, it may be evident that Lorentz force is at work.
The forward and reflected power detector needs to be inserted inline in the coax feed between the thruster and the circulator.
Quote from: Monomorphic on 04/20/2017 02:17 pmThis is a second very simple wiring option that I am seriously considering, but I would need to purchase a $250 100W attenuator to make it work. The Windfreak NV signal generator has an onboard power detector that I have tested and it works very well. It also has well documented/commented software: https://windfreaktech.com/wp-content/uploads/docs/synthnv/serialcomm.pdf Would be a fairly simple matter to write new control software that monitors the reflected power while automatically adjusting signal frequency.Jamie, have you considered starting a GoFundMe site for your work? I am sure there are many who would be willing to help offset some of the costs for your endeavor.
Jamie, have you considered starting a GoFundMe site for your work? I am sure there are many who would be willing to help offset some of the costs for your endeavor.
This is a second very simple wiring option that I am seriously considering, but I would need to purchase a $250 100W attenuator to make it work. ...<snipped picture>
Quote from: Monomorphic on 04/20/2017 02:17 pmThis is a second very simple wiring option that I am seriously considering, but I would need to purchase a $250 100W attenuator to make it work. The Windfreak NV signal generator has an onboard power detector that I have tested and it works very well. It also has well documented/commented software: https://windfreaktech.com/wp-content/uploads/docs/synthnv/serialcomm.pdf Would be a fairly simple matter to write new control software that monitors the reflected power while automatically adjusting signal frequency.Well, there are cheaper critters, but then I'm not sure they may be suitablehttps://www.aliexpress.com/cheap/cheap-100w-rf-attenuator.html
Another powered test. As you can see, noise floor into the test is very low now (top) and much improved upon earlier tests (bottom). What's interesting about this most recent test is the entire test stand has been moved 90 degrees from its earlier position, so that the test stand is now roughly east-west - yet the same anomalous "forward thrust" signal remains, albeit at a reduced level.
Quote from: rhubley on 04/20/2017 05:40 pmJamie, have you considered starting a GoFundMe site for your work? I am sure there are many who would be willing to help offset some of the costs for your endeavor.Yes, I've considered it. I just haven't had the time to look into the production aspects. In order to make it look decent, I would need to do a lot of marketing-type work. I'm also a little apprehensive about the baggage/expectations accepting donations entails. With the purchase of the Windfreak NV signal generator and Spectrian amplifer, that came to nearly $800, which is somewhat over my monthly budget. But I had a few extra hundred sitting around after a stock trade this week so it all works out.
The force might be in its maximum, but it is the torque that is the main factor that influences the balance displacement. If the DC loop is in the vertical plane defined by gravity and the balance arm, when the arm is in East - West direction, we will see the thrust to be close to its minimum (zero, if the loop is perfectly in the said plane). This claim is supported both by experiment and by theory. The attached picture is a screenshot from may paper, https://arxiv.org/pdf/1510.07752.pdf, fig 5. In my experiment, when the arm pointed to the East, the thrust was much smaller than when it pointed to the North.Theoretically, the measured 'thrust' is related to the torque. When the said plane where the DC loop resides is parallel to the magnetic field (this is the case when arm points North - South), the Lorentz forces caused by currents in the two vertical lines of the loop point to opposite directions, and both are perpendicular to the plane, maximizing the torque. On the other hand, if the arm points East - West, the two opposite forces are in the same plane, minimizing the torque.
Quote from: ThatOtherGuy on 04/19/2017 07:44 pmQuote from: PotomacNeuron on 04/19/2017 06:42 pmQuote from: Monomorphic on 04/19/2017 06:11 pmAnother powered test. As you can see, noise floor into the test is very low and much improved upon earlier tests. What's interesting about this most recent test is the entire test stand has been moved 90 degrees from its earlier position, so that the test stand is now roughly east-west - yet the same anomalous "forward thrust" signal remains, albeit at a reduced level.Thank you! I think if you keep moving the settings to other directions, you will find zero and negative positions. If so, draw a force_vs_direction plot, it may be evident that Lorentz force is at work.At work ... Only when it comes to powered tests? Please expand your claimIt will be at work if RF-on is accompanied by power-on. If RF-on is accompanied by power-on, or will alter power current, DC loops will interact with the Earth's magnetic field and generate Lorentz force.
Quote from: PotomacNeuron on 04/19/2017 06:42 pmQuote from: Monomorphic on 04/19/2017 06:11 pmAnother powered test. As you can see, noise floor into the test is very low and much improved upon earlier tests. What's interesting about this most recent test is the entire test stand has been moved 90 degrees from its earlier position, so that the test stand is now roughly east-west - yet the same anomalous "forward thrust" signal remains, albeit at a reduced level.Thank you! I think if you keep moving the settings to other directions, you will find zero and negative positions. If so, draw a force_vs_direction plot, it may be evident that Lorentz force is at work.At work ... Only when it comes to powered tests? Please expand your claim
Quote from: Monomorphic on 04/19/2017 06:11 pmAnother powered test. As you can see, noise floor into the test is very low and much improved upon earlier tests. What's interesting about this most recent test is the entire test stand has been moved 90 degrees from its earlier position, so that the test stand is now roughly east-west - yet the same anomalous "forward thrust" signal remains, albeit at a reduced level.Thank you! I think if you keep moving the settings to other directions, you will find zero and negative positions. If so, draw a force_vs_direction plot, it may be evident that Lorentz force is at work.
Another powered test. As you can see, noise floor into the test is very low and much improved upon earlier tests. What's interesting about this most recent test is the entire test stand has been moved 90 degrees from its earlier position, so that the test stand is now roughly east-west - yet the same anomalous "forward thrust" signal remains, albeit at a reduced level.
Quote from: PotomacNeuron on 04/19/2017 08:28 pmQuote from: ThatOtherGuy on 04/19/2017 07:44 pmQuote from: PotomacNeuron on 04/19/2017 06:42 pmQuote from: Monomorphic on 04/19/2017 06:11 pmAnother powered test. As you can see, noise floor into the test is very low and much improved upon earlier tests. What's interesting about this most recent test is the entire test stand has been moved 90 degrees from its earlier position, so that the test stand is now roughly east-west - yet the same anomalous "forward thrust" signal remains, albeit at a reduced level.Thank you! I think if you keep moving the settings to other directions, you will find zero and negative positions. If so, draw a force_vs_direction plot, it may be evident that Lorentz force is at work.At work ... Only when it comes to powered tests? Please expand your claimIt will be at work if RF-on is accompanied by power-on. If RF-on is accompanied by power-on, or will alter power current, DC loops will interact with the Earth's magnetic field and generate Lorentz force.So why is the displacement curve Jamie measured not showing a constant displacement force during the entire Rf / Power on period?His data is showing there is an approx 30-35 sec long displacement force and a 30-35 sec return to the original displacement position. There is no evidence of a continual displacement force.Maybe you can explain why what we see is caused by a Lorentz force from the test rig interacting with the Earth's magnetic field?
Quote from: Monomorphic on 04/20/2017 07:24 pmQuote from: rhubley on 04/20/2017 05:40 pmJamie, have you considered starting a GoFundMe site for your work? I am sure there are many who would be willing to help offset some of the costs for your endeavor.Yes, I've considered it. I just haven't had the time to look into the production aspects. In order to make it look decent, I would need to do a lot of marketing-type work. I'm also a little apprehensive about the baggage/expectations accepting donations entails. With the purchase of the Windfreak NV signal generator and Spectrian amplifer, that came to nearly $800, which is somewhat over my monthly budget. But I had a few extra hundred sitting around after a stock trade this week so it all works out. Consider Patreon too. Especially if you have a monthly budget! Much less marketing required, Bob Woods might even do the word smithing