trevie1970,
According to what you are saying buying a 3000 dollar power supply was not a wise decision, where you can put some components for 50 dollars together and get the same results, that does make sense, what about the 40 turns of 25 AWG wire around an iron bar, can you achieve the...
Hey there Physics Forum:
We met for our design of the 0.2 Tesla coil with iron bar added in the middle instead of air core and the team made the decision, I'm not the decision making body of the team, they made the decision, I'm the advisor.
Here's what they came up with to generate 0.2 Tesla...
chitrageetam,
Yes, the plan is to use the triode or thyristor that can withstand 2000 amps and switch it ON and OFF through a low voltage control circuit that puts out say 2 volts at the control input line of the triode. We will also have to cool both triodes, besides both helmholtz coils...
chitrageetam,
After Thanksgiving if the team agrees on this design and we begin ordering the parts and putting 0.5 inch diameter solid copper coil #4/0 and wrapping around 30 turns will give us a foot and a few inches in length for the air core coil length and diameter of coil is 3 inches with...
Marcus,
I appreciate your input. Thanks for sharing. Good points you made, however, We (our research team) need to press and put this together as soon as possible, after the Thanksgiving holiday. Your comments are well taken and feel free anytime to write about this project. Believe me, I need...
Now this power supply can put out 2000 amps at millisecond interval:
http://www.microwelding.co.uk/3-1-1-2-1.asp
This power supply accepts single phase input.
Millisecond time intervals work out based on the L/R time constant.
With L equal to 10 micro Henries and R for the 13 inch long...
Here's what I calculated from the inductance formula for air core coil. Diameter of coil is 3 inches, wire diameter is .52 inches, coil length is 13.3 inches, and number of turns is 25.5, the inductance is 10 microHenries.
Now using the formula N times I = (B times L) / u0
Substituting for the...
Trevie,
As you read from Marcus' replies, we were going to go full speed ahead and use 3 phase, but we decided to apply the KIS principle, Keep it Simple.
So our plan is to use single phase no cooling at this time, although I have a funny feeling that because of the level of magnetic field of...
Marcus, you are a very very funny person. Our goal as students is not to brown out Fort Collins, but to use house current and voltage.
Instead of copper tubing we are going to go with solid copper wire.
Again, I'm throwing out ideas, but let's include math from now on, if that's OK with you...
Marcus,
I forgot to mention in my last entry that the copper tubing and power supply will be cooled with running cold water through both copper tubing coils and power supply.
Bob
Marcus,
Here's what I found out so far. To recap what's written below is use two copper tubing coils (2 turns each) in helmholtz configuration where their distance apart is equal to the radius of the tube coils. A high voltage pulsing circuit, pulses one coil and then the other microseconds...
Marcus,
I let my co-researchers know about our blog. I did find a commercial RF power supply that puts out 50 to 485KHZ at an RF power of 10KW, coil voltage of 1100 Vrms. I wonder what kind of magnetic field it would produce if I wind one to two turns of copper tubing say 1/8 inch diameter to...
You are funny, Marcus. 60 HZ is what I think would work, but the researchers still want from KHZ to MHZ range. I'm not sure if it is possible to move a big size magnetic field like 0.2 T 100 MHZ, I'll bet it can be done, but it won't be easy.
Marcus, I have lots to read. Thanks for the info. My application at the University is to move iron nanoparticles attached to polymers. The goal of the project is to see if the nanoparticles are swept back and forth based on the magnetic field changing, for example 60 Hz the magnetic field would...