Hi Again
Well I borrowed my neighbours scope and took some readings this morning. My circuit switches between 0V and 12vdc and the FET is connected to a 10:1 step up transformer giving me an output voltage of just over 100V.
Using the diode and a combination of chokes in series with the cell, I can achieve a small trickle of gas with the inner tubes insulated using adhesive backed plastic film. The purpose of this is to create an 'idealised capacitor' in Meyer's terminology.
My circuit is capable of controlling the frequency anywhere between a few hundred Hz and about 12Khz. The capacitance of the cell is measured at 1.2 micro Farad. One of my typical chokes is measured at approx 13mH. Using the well known formula the resonant frequency should therefore be around 1400Hz. In fact I cannot achieve resonance at any frequency.
This is a huge problem, because unless you can achieve resonance to see if any special effects occur, all you have is a PWM electrolysis system, which is never likely to attain over unity, since it relies on current. Insulating the inner tubes means that my circuit cannot behave resistively and draw high currents.
I really do not know where to go from here. However a few musings and possibilities come to mind:
1) That using higher voltages say 2KV instead of 100V may be enough to produce some different breakdown effect within the cell insulation changing the cell capacitance and allowing resonance to occur. However I have strong doubts that voltage is the key to it all. Resonance should be possible at 100V if it is possible at all.
2) Using adhesive backed plastic; does this mean that I have created too much insulation? Could it be that tube conditioning as (Lawton/Ravi suggest) is the only answer, until the white powder coats the inner cell adequately? Again I have my doubts, and if this is true, it turns the exercise into an art rather than a science and it means that the repeatability of Stan's work is going to be extremely difficult to achieve.
As a matter of interest, when I dismantled my cell to insulate the inner tube, I did find a curious white coating/powder on the inner tube from previous testing.
3) Is resonance achievable using DC at all? I know that some have already had this debate, and I can still find no definitive answer to this. One option I have remaining is to use AC. However a high power output variable frequency AC supply is beyond my means to acquire at this stage due to cost. However I do have 240Vac 50Hz at my disposal. What I could do therefore is find out what size choke is needed to achieve series resonance across a 1.2 micro Farad capacitor using a supply of 50Hz. According to the well known formula, I need a 10H choke, which would be the size of a refrigerator! I need to see if I could acquire such a beast.
Anyway the doubts are now mounting in my mind - not that Meyer did what he said he did, but I do now have some doubts that his work is repeatable. I have the equipment to do what he did, and for some reason I just am unable to find the exact combination to produce high amounts of gas. Maybe someone has a further insight that I have not yet tried!
Gazza
Well I borrowed my neighbours scope and took some readings this morning. My circuit switches between 0V and 12vdc and the FET is connected to a 10:1 step up transformer giving me an output voltage of just over 100V.
Using the diode and a combination of chokes in series with the cell, I can achieve a small trickle of gas with the inner tubes insulated using adhesive backed plastic film. The purpose of this is to create an 'idealised capacitor' in Meyer's terminology.
My circuit is capable of controlling the frequency anywhere between a few hundred Hz and about 12Khz. The capacitance of the cell is measured at 1.2 micro Farad. One of my typical chokes is measured at approx 13mH. Using the well known formula the resonant frequency should therefore be around 1400Hz. In fact I cannot achieve resonance at any frequency.
This is a huge problem, because unless you can achieve resonance to see if any special effects occur, all you have is a PWM electrolysis system, which is never likely to attain over unity, since it relies on current. Insulating the inner tubes means that my circuit cannot behave resistively and draw high currents.
I really do not know where to go from here. However a few musings and possibilities come to mind:
1) That using higher voltages say 2KV instead of 100V may be enough to produce some different breakdown effect within the cell insulation changing the cell capacitance and allowing resonance to occur. However I have strong doubts that voltage is the key to it all. Resonance should be possible at 100V if it is possible at all.
2) Using adhesive backed plastic; does this mean that I have created too much insulation? Could it be that tube conditioning as (Lawton/Ravi suggest) is the only answer, until the white powder coats the inner cell adequately? Again I have my doubts, and if this is true, it turns the exercise into an art rather than a science and it means that the repeatability of Stan's work is going to be extremely difficult to achieve.
As a matter of interest, when I dismantled my cell to insulate the inner tube, I did find a curious white coating/powder on the inner tube from previous testing.
3) Is resonance achievable using DC at all? I know that some have already had this debate, and I can still find no definitive answer to this. One option I have remaining is to use AC. However a high power output variable frequency AC supply is beyond my means to acquire at this stage due to cost. However I do have 240Vac 50Hz at my disposal. What I could do therefore is find out what size choke is needed to achieve series resonance across a 1.2 micro Farad capacitor using a supply of 50Hz. According to the well known formula, I need a 10H choke, which would be the size of a refrigerator! I need to see if I could acquire such a beast.
Anyway the doubts are now mounting in my mind - not that Meyer did what he said he did, but I do now have some doubts that his work is repeatable. I have the equipment to do what he did, and for some reason I just am unable to find the exact combination to produce high amounts of gas. Maybe someone has a further insight that I have not yet tried!
Gazza
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