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Hi all, just wanted to pass along some interesting results from research I’ve been working on.
I was cleaning up the shop and noticed that one of the rods of Lucite exhibited a high static charge nothing unusual except that I’m on the coast and the humidity index was at 90%. What made this even more interesting was the effect it had on a tiny coil I had on the bench near me.
I had one afternoon in boredom took 24ga mag wire and wound a single layer bifilar pancake coil 1” in diameter and then thru the center put in a 1.5” high 36ga coil wound around a graphite pencil lead ( the leads are 90yrs old ) the top is a .25” chrome bearing. It was more of a art piece than anything. The leads are attached to a tiny cap.
This above mini coil would sing when the charged Lucite rod was placed near or held close enough not to discharge. I then built up more of a charge on the rod and would run it perpendicular to the coil or horizontal to ground and moving it past the vertical coil it would hum and then discharge.
Fascinated my this I went over to another project on the bench where I’m building a variation of a PM generator for some R&D related to my actual job. Now the coil arrangement on the setup is not std and a bit odd. In anycase this layout exhibits things I have not come across before.
I have attached a quick schematic of the setup for those who which to duplicate and experiment as well, I will be turning to the math and focusing on what is going on. From what I’ve seen and will describe here this is where the -1 eq. must fit. The coils are attached to Lucite plates and separated so as to have the right hand turns above the left hand, the schematic is a ‘fold-out’ along the airgap centerline.
Referencing the layout attached you notice left and right turn coils. They are cross connected and run 4 to a group. The addition of the resistor and cap was to see if I could build and hold a charge.
The Lucite rod is 1” dia and 24” long. I charged it with a microfiber rag that had some residual polishing compound on it, works better than a new clean rag. Holding the rod horizontal to the coils when charged would charge the cap fairly quickly, bringing the rod perpendicular to the coils took longer to charge the cap and it exhibited an effect similar to magnet moving by, the voltage would read as AC, not building DC. Waving the rod horizontally would also produce an AC voltage. The cap still charged but would also slowly discharge. If the waving stopped, however bringing the rod near and quickly removing then returning while charging the rod would keep the charge going and cap building. The voltage reading on the meter would read millivolts then volts then it exceeded the limit of the meters 1000v capability. Bringing a ground rod near one of the coil terminals would cause a discharge at about .5” away and a voltage cycle.
I played with this for about an hr and found another interesting effect. Charging the coils then discharging the coils produced a high voltage read for a couple seconds after the discharge spike. The meter has the ability to read Hi voltage by warning beep without leads. The rod would get a chirp near the meter but required another charge to get another chirp. The coils would also produce a beep and the beep exhibited a very low Hz cycle, upon grounding the terminal the meter would hold a sustained beep for a number of seconds after the grounding. And with no further static input charge I could get another discharge from the coils however it was exponentially smaller.
Building the cap charge to the meter reading 2volts and then holding the charged rod above the coils the static hum was very apparent; It felt like a high frequency charge.
I also had some additional coils not wired up with fairly long leads that would behave oddly. The charge would cause the leads to flatten to the bench and others to repel to the air, yet no discharge or impedance to the charge.
Couple other points, the temp of the rod had an effect as well, to cold it took longer, too hot and the charge dropp’d just warm of about 90F seemed to work best. Could be a delta factor of the air temp as well for the potential charge difference. I do a fair amount of work with compressed air charge and fuel atomization and the calcs for that make ones head hurt. And it’s still a bit of an art.
So it’s an interesting effect and I’ve honestly never heard of a coil rectifying a static charge by reception by simply being near it. There is ZERO contact with this and no discharge spikes from the rod to the coils. I’ll be playing more with this once I have some calcs worked out as there is a very fine line between good charge and ho-hum. Good possibility the coil arrangement is not right either but close enough to start from. I already have some ideas of why.
Maybe someone has already experimented with this. I also notice that the Lucite rod when charged caused a compass to read polarity, I wasn’t aware of a magnetic polarity in static charge.
I was cleaning up the shop and noticed that one of the rods of Lucite exhibited a high static charge nothing unusual except that I’m on the coast and the humidity index was at 90%. What made this even more interesting was the effect it had on a tiny coil I had on the bench near me.
I had one afternoon in boredom took 24ga mag wire and wound a single layer bifilar pancake coil 1” in diameter and then thru the center put in a 1.5” high 36ga coil wound around a graphite pencil lead ( the leads are 90yrs old ) the top is a .25” chrome bearing. It was more of a art piece than anything. The leads are attached to a tiny cap.
This above mini coil would sing when the charged Lucite rod was placed near or held close enough not to discharge. I then built up more of a charge on the rod and would run it perpendicular to the coil or horizontal to ground and moving it past the vertical coil it would hum and then discharge.
Fascinated my this I went over to another project on the bench where I’m building a variation of a PM generator for some R&D related to my actual job. Now the coil arrangement on the setup is not std and a bit odd. In anycase this layout exhibits things I have not come across before.
I have attached a quick schematic of the setup for those who which to duplicate and experiment as well, I will be turning to the math and focusing on what is going on. From what I’ve seen and will describe here this is where the -1 eq. must fit. The coils are attached to Lucite plates and separated so as to have the right hand turns above the left hand, the schematic is a ‘fold-out’ along the airgap centerline.
Referencing the layout attached you notice left and right turn coils. They are cross connected and run 4 to a group. The addition of the resistor and cap was to see if I could build and hold a charge.
The Lucite rod is 1” dia and 24” long. I charged it with a microfiber rag that had some residual polishing compound on it, works better than a new clean rag. Holding the rod horizontal to the coils when charged would charge the cap fairly quickly, bringing the rod perpendicular to the coils took longer to charge the cap and it exhibited an effect similar to magnet moving by, the voltage would read as AC, not building DC. Waving the rod horizontally would also produce an AC voltage. The cap still charged but would also slowly discharge. If the waving stopped, however bringing the rod near and quickly removing then returning while charging the rod would keep the charge going and cap building. The voltage reading on the meter would read millivolts then volts then it exceeded the limit of the meters 1000v capability. Bringing a ground rod near one of the coil terminals would cause a discharge at about .5” away and a voltage cycle.
I played with this for about an hr and found another interesting effect. Charging the coils then discharging the coils produced a high voltage read for a couple seconds after the discharge spike. The meter has the ability to read Hi voltage by warning beep without leads. The rod would get a chirp near the meter but required another charge to get another chirp. The coils would also produce a beep and the beep exhibited a very low Hz cycle, upon grounding the terminal the meter would hold a sustained beep for a number of seconds after the grounding. And with no further static input charge I could get another discharge from the coils however it was exponentially smaller.
Building the cap charge to the meter reading 2volts and then holding the charged rod above the coils the static hum was very apparent; It felt like a high frequency charge.
I also had some additional coils not wired up with fairly long leads that would behave oddly. The charge would cause the leads to flatten to the bench and others to repel to the air, yet no discharge or impedance to the charge.
Couple other points, the temp of the rod had an effect as well, to cold it took longer, too hot and the charge dropp’d just warm of about 90F seemed to work best. Could be a delta factor of the air temp as well for the potential charge difference. I do a fair amount of work with compressed air charge and fuel atomization and the calcs for that make ones head hurt. And it’s still a bit of an art.
So it’s an interesting effect and I’ve honestly never heard of a coil rectifying a static charge by reception by simply being near it. There is ZERO contact with this and no discharge spikes from the rod to the coils. I’ll be playing more with this once I have some calcs worked out as there is a very fine line between good charge and ho-hum. Good possibility the coil arrangement is not right either but close enough to start from. I already have some ideas of why.
Maybe someone has already experimented with this. I also notice that the Lucite rod when charged caused a compass to read polarity, I wasn’t aware of a magnetic polarity in static charge.
.
! it wasn't the normal static charge sensation but a sensation that your touching a physical bubble of force. 
.
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