A Simple Rolling Homopolar Motor
نویسنده
چکیده
The ready availability of very strong permanent magnets in the form of rare-earth magnetic alloys such as neodymium-iron-boron has lead to renewed interest in one of the oldest types of electric motors the homopolar motor. The ease with which a demonstration homopolar motor can now be built and operated when neodymium magnets are used is quite remarkable. In this paper two recent types of simple homopolar motors relying on the use of neodymium magnets are reviewed. Recent improvements proposed and demonstrated by the author to the latter `homopolar roller' type are also described and discussed.
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