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| Ev Archive for April 1998 |
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| 1190 messages, last added Wed Aug 08 18:42:06 2001 |
[Date Index][Thread Index]
Re: Regen, part 3
Dale Glubrecht wrote:
>I would love to have a bag of those monopole motors :-)
Almost all motors have an even number of poles (2, 4, 6...) But there *are*
1-pole motors. They are called homopolar motors.
A DC homopolar motor has no commutator. The rotor is a conductive disk on an
axle. One brush connects to the shaft via a slip ring, and another to the
outside rim of the disk. Current from the power source flows radially from
center to rim. The field (magnets or electromagnets) establish a magnetic
field through the disk (axially; in the same direction as the axle).
Just as in a conventional motor, the field and rotor magnetic fields are at
right angles, and so it rotates!
Lee Hart Strange but true!
4209 France Ave. N. RipLee's Believe It or Get Shocked
Robbinsdale, MN 55422 USA
phone (612) 533-3226 e-mail XURQ03A@prodigy.com
Re: Regen, part 3
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