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Glossary - O |
Oersted (Oe)
Ørsted, Hans Christian
Operating point
Operating temperature
Oxide magnet (hard ferrite)
Oersted (Oe)
The CGS unit of magnetic field H. 1 Oe = 1 G = 79.6 A/m.
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Ørsted, Hans Christian
Danish physicist and chemist who discovered that electric current in a wire can deflect a magnetized compass needle, a phenomenon the importance of which was rapidly recognized and which inspired the development of electromagnetic theory.
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Operating point
See working point.
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Operating temperature
It is the highest temperature which a magnet can be subjected to without showing permanent magnetisation losses. Other factors as a mechanical or chemical strain can further reduce the maximum application temperature.
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Oxide magnet (hard ferrite)
Ceramic magnetic material, e.g. barium or strontium ferrite.
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