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Author Topic: Help With a Simple Experiment  (Read 3416 times)

rukiddingme

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Help With a Simple Experiment
« on: June 23, 2008, 10:33:53 AM »
I've been going around about an aspect of the Kore design for a while. Some people say that you need a equal force between two electromagnets to release the magnetic grip between them. I am under the impression that you would not need an equal force to cause just the release of the magnetic grip.

I ask with the deepest humility for someone to perform this simple experiment.

Take two identical electromagnets with metal cores in a vertical configuration. Energize the first (upper) electromagnet with enough current so it can easily support the weight of the second (lower) non-energized electromagnet. It might help that it is not energized to it's full rating. Now increase the current to the second (lower) electromagnet until it falls away. Note the currents to both and tell me if they are the same or different and if different, what the difference is.

I can't tell you how much I would appreciate someone doing this for me.

Thanks in advance.
« Last Edit: June 23, 2008, 11:06:22 AM by rukiddingme »
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greendoor

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Re: Help With a Simple Experiment
« Reply #1 on: June 23, 2008, 11:45:04 AM »
It will almost certainly be a lower current, because you have the force of gravity to assist the seperatation.  What are you trying to achieve anyway? 
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rukiddingme

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Re: Help With a Simple Experiment
« Reply #2 on: June 23, 2008, 12:07:45 PM »
Quote from: greendoor on June 23, 2008, 11:45:04 AM
It will almost certainly be a lower current, because you have the force of gravity to assist the seperatation. 

Yes, you are right, I must be more exact about this. That was to get an estimate, I wanted to eliminate human interpetation, but the only easy way to get a result is by hand. What must really happen is that you lay them side by side and apply current until there is no attraction or repulsion. The only way I see this being done is to test it by hand, to change the current a little at a time until you find the sweet spot where there is a null force between them, no attraction or repulsion. Thanks for pointing this out, greendoor, it helps.

Quote from: greendoor on June 23, 2008, 11:45:04 AM
What are you trying to achieve anyway? 

Trying to figure out the feasibility of this project:

Kore - Magnetic Overly-efficient Variable Engine Rotary

http://www.dreamslaughter.com/kore/kore.htm

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petersone

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Re: Help With a Simple Experiment
« Reply #3 on: June 23, 2008, 12:21:09 PM »
Hi All
Surely it is a valid test,as the top e/mag has to hold against gravity
happy hunting
peter
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petersone

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Re: Help With a Simple Experiment
« Reply #4 on: June 23, 2008, 12:34:19 PM »
Hi All,again
Second thought,ignore last post,not valid test.
happy hunting.
peter
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rukiddingme

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Re: Help With a Simple Experiment
« Reply #5 on: July 09, 2008, 04:05:57 AM »
Okay, let me ask everyone this. How much would it cost for someone to perform this experiment?

1. ? Take three non-energized electromagnets with non-magnetized metal cores.

2. ? Insert a plastic spacer (1mm) between each of the end magnets and the center magnet. Place them end to end. Notice that at this point there is no attraction or repulsion between the electromagnets. This state or relationship is the null state, having no magnetic grip or repulsion.

3. ? Charge the two outmost electromagnets to an appropriate value, where the three electromagnets are held together with appreciable force. Record volts, amps and resistance; call this value ?x0?. Do not saturate the cores.

4. ? Charge the middle electromagnet to the same values of ?x0?.

5. ? Record if there is attraction or repulsion between the outer and inner electromagnets and give it a description.

6. ? If there is still repulsion, slowly reduce the current to the middle electromagnet until there is a null force created, no repulsion or attraction.

7. ? Record this current value and call it ?y0?.

8. ? Repeat The experiment for five (5) different values of x: x1,x2,x3,x4,x5; resulting in five (5) values of y: y1, y2, y3, y4, y5. These values should be spread out equally between (a) where there is a starting appreciable weak attraction between the charged electromagnets and the middle non-energized electromagnet; and (b) where there is almost saturation of the cores and a strong attraction.

9. ? Repeat the above experiment with no spacers, the surfaces of the metal cores of the electromagnets are in contact.

10. ? Repeat the above experiments with spacers .5mm thick.


Thanks

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