Thanks for sharing your knowledge with us.

Hi, observing your setup, maybe you may redo, but with the coil, inverted or hanging, so you can insert the large pipe paralell, or tryout other large pipe pieces to see the 360 dregree effect as in the interior application, I foresee that being the field more intense in the whole circumference, you may observe very large currents.

@frenchcreekvalley

Жыл бұрын

I could do that, but I am certain that the current would be excessive for the 1000 watt heater, since I can't go over about 22 amperes for any length of time anyway. Hopefully you DO see that there isn't much power transfer out at the 3 inch radius position anyway.

@alvarobravok

Жыл бұрын

@@frenchcreekvalley Yes, Imagining the field instead of concentrate inside, it diverges outward, makes sense, but close enough I believe the field is almost the same. Interesting to see with smaller coil. One way to test is with metal cylinder from thin sheet to avoid excessive current. This may be allow to heat tubes from inside.

I have written a program that shows the magnetic strength variations WITHIN the coil..the results seemed "not well-known" as many people insist the the field is strongest down the middle axis of the coil. I have also derived formulas that agree with my simulation program. Which suggest that the field is most intense at the OUTER edges inside the coil. After watching this video, it should be a very simple test to illustrate this (I don't have a working heater at the moment). Perhaps you could insert a test-piece and compare strength between the center axis and then at the coil's inner perimeter (without shorting the copper rings...obviously). Perhaps you could find a somewhat thick hollow cylinder that just fits INSIDE the coil?? THANKS FOR YET ANOTHER GREAT VIDEO!!! BTW: what is your first name?

@frenchcreekvalley

Жыл бұрын

Hello Dale. I have read all 3 comments that you posted in the last few hours. Over the last couple of years I have made dozens of videos about these heaters and in at least a few of them I have moved the workpieces from the center of the coil towards the outer edges. In general, I see very little difference in current when I do this. Also- I am sure that I have inserted thin tubular workpieces the closely fit inside the workcoil from time to time. I'm afraid that my indexing system isn't very good, so I can't tell you exactly which videos show those experiments. Here are a few related playlists: 2500 Watt kzread.info/head/PLVxWen9M87dCeUnIhxueR0sJ9bvI2rbRJ 1000 Watt kzread.info/head/PLVxWen9M87dBhvInCQ-3pELWdxCM3XH4I 1800 Watt kzread.info/head/PLVxWen9M87dBNZywEKDStz9gYv0hE9J0l I look forward to your own testing as soon as you get your own system operational.

@dalenassar9152

Жыл бұрын

@@frenchcreekvalley Hi again, I rigged up a small ZVS heater/coil, determined, somehow, to show that the work-coil field is stronger near the inside edges. I only had a few hundred watts, and wound a 10-turn, 1 inch, 16awg work-coil. For the super-simple test with what I had, I used a jumbo paper clip: I simply bent part of it into a "U" shape and inserted it into the coil It was bent so that upon insertion I had two vertical axial wires in the coil,one near the inner edge and one on the center axis. Upon insertion the wire along the edge heated and glowed red much faster than than the one along the center axis.

Hi, where did you get this frequency meter? Isnt it crystal frequency meter and you rebuild it? Thanks

@frenchcreekvalley

Жыл бұрын

This video explains my frequency meter setup: kzread.info/dash/bejne/dal_qMeDnK2_d5M.html I think it was this kit: www.aliexpress.com/item/2255800949438433.html

Hello, don't get tired, is it possible to connect a DC 60V 50A power supply to a 4000W induction heater with 8 MOSFETs?

The trend on YT seems to be about testosterone-loaded projects where electrical stresses get relatively localized, hence multiplying chances of component failure during such evolution. Would it not result in a same overall heating effect to divide a single air-core magnetic vector as, lets say, 18 (2 vertically-superposed layers of 6 poles in some stator layout, as in stepper motors but without a rotor)? Except with the benefit of enhanced energy redistribution and improved reliability of the driver. Magnetic stacking of energy sources (rather than electric) would imply it's synchronuous but would it not ease such evolution toward high-power solutions for industrials?...