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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: unclestu and others_Steel disk and available space question posted by dmzwizard@yahoo.com on April 20, 2012 at 11:35:02:
Imagine the magnetic field of the transformer as a washtub full of water. Say you have two people 180 degrees apart and paddling the water in the same direction (clockwise or counterclockwise). You soon see a vortex in the middle. Try pouring additional water into the vortex and the system collapses. That's what happens when you place a magnetic material in the center of the toroid. The fields from the other sides, like the water actually fight each other and create more issues.
As previously stated, any ferrous material tends to catch magnetic field and retain them. That's where many issues come about. If you place, say a nail on a magnet, you will notice the tip of the nail will magnetically attract objects even further away than the magnet without the nail.
So, in order to limit the field of the toroid, the washer should not extend really beyond the edges of the transformer. The larger washer will actually extend the field further beyond the edges. The washer works by pulling the fields on top of the toroid closer to the windings. In doing so, the lines of force come out at the edges closer to the toroid itself, too.
Stu
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Follow Ups
- RE:Steel disk - unclestu 12:33:21 04/20/12 (4)
- RE:Steel disk - dmzwizard@yahoo.com 14:47:21 04/20/12 (3)
- Found these - QuadTodd 17:28:53 04/20/12 (1)
- RE: Found these - dmzwizard@yahoo.com 02:57:28 04/21/12 (0)
- glad to be of some help - unclestu 15:31:18 04/20/12 (0)
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