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New Theories / What is the mechanism of charge movement behind a Van der Graff device?
« on: 06/11/2008 03:37:26 »
In this case a new physics must be described. In a part of physics is described how a electron is emitted at high temperature ( Eddison effect) or due to a excitation energy which is quite consistent.
In another case, the same electrons are passing from a material to another only due to the geometrical form of the object (sharp), even there is no reason for this charge transfer.
Your reference link ( http://www.eskimo.com/~billb/emotor/belt.html
) is only the trial of a person to explain the VDG principle, because he observed the inconsistency of accepted explanation.
This does not mean he has right.
If the lower brush is removed, you will be in a situation presented in another post and his explanation does not work.
Another simple case> connect the lower brush to a certain object. How long do you think it is possible to take charge from it?
Make a simple math and you will see that after few minutes the VDG should stop to work.
In the same time, he was underlined that VDG works with the second roller made from another type of material (generally metallic). MY VDG works with both rollers made from the same material. How is applying his explanation in this case?
A detailed analysis will show that a charge injection will change some things in the triboelectric process, but is not the case to insist here.
Original Van der Graff are without any injection charge on the belt. The ,,charge" injection modify the mechanism but again the actual explanation is ruled out.
Of course, I'm agree with you:,,There must be something more subtle happening, I think.".
This will be described in the book.
It is not the case to ,,fix" the attention to much on the VDG device. There will be other posts more interesting...
In another case, the same electrons are passing from a material to another only due to the geometrical form of the object (sharp), even there is no reason for this charge transfer.
Your reference link ( http://www.eskimo.com/~billb/emotor/belt.html
) is only the trial of a person to explain the VDG principle, because he observed the inconsistency of accepted explanation.
This does not mean he has right.
If the lower brush is removed, you will be in a situation presented in another post and his explanation does not work.
Another simple case> connect the lower brush to a certain object. How long do you think it is possible to take charge from it?
Make a simple math and you will see that after few minutes the VDG should stop to work.
In the same time, he was underlined that VDG works with the second roller made from another type of material (generally metallic). MY VDG works with both rollers made from the same material. How is applying his explanation in this case?
A detailed analysis will show that a charge injection will change some things in the triboelectric process, but is not the case to insist here.
Original Van der Graff are without any injection charge on the belt. The ,,charge" injection modify the mechanism but again the actual explanation is ruled out.
Of course, I'm agree with you:,,There must be something more subtle happening, I think.".
This will be described in the book.
It is not the case to ,,fix" the attention to much on the VDG device. There will be other posts more interesting...