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# Load line in magnet systems

- To: "FEMM" <femm@yahoogroups.com>
- Subject: Load line in magnet systems
- From: "Olav Mellum Arntzen" <olav@seas.no>
- Date: Wed, 28 May 2003 09:16:35 +0200

When constructing a magnet system, it is important to choose a load line above the "knee" in the demagnetization curves. When I change the magnet area in a simple magnetic circuit with an air gap (and a linear neodymium magnet material), it seems to me that I'm only changing the operating point at the same load line. I am sure that I have missed some important assumptions regarding the magnet model that I am using. All comments and other's experience in this matter are really appreciated. Kind Regards Olav ************************************************************ Olav Mellum Arntzen Development Engineer SEAS Fabrikker AS Phone +47 69 23 30 31 P.O.Box 600 Telefax +47 69 23 30 01 N-1522 Moss, Norway www.seas.no

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