3. Converting mechanical energy into electrical energy
The conversion of mechanical energy into electrical energy is based on the inverse effect of the previous one, as seen in paragraph 2 . Thus, the DC machine can operate as a generator and send electrical energy back to the grid. Similarly, the synchronous machine is an alternator when it operates as a generator. Other devices, such as microphones and electrophone heads, convert mechanical energy into...
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Converting mechanical energy into electrical energy
Converting mechanical energy into another form of mechanical energy
Economic data
1. Worldwide production
The permanent magnet market was estimated at US$4.4 billion in 1998, over US$5 billion in 2000 and US$8 billion in 2007. It should continue to grow, reaching US$11 billion in 2010.
With their modest magnetic performance but low cost, ferrites remain the magnet family that dominates the world market, both in terms of tonnage (90%) and sales (around half of the global...
Bibliography
References
Standardization
Association française de normalisation AFNOR
- Magnetic materials – Method for measuring the coercive field of magnetic materials in an open magnetic circuit (classification index: C28-921). - NF EN 10330 - (08-03)
- Magnetic materials – Materials for permanent magnets (magnetically hard) – Methods for measuring magnetic...
International Electrotechnical Commission IEC
- Magnetic materials – Part 1: Classification. - CEI 60404-1 - (08-00)
- Matériaux magnétiques. Septième partie : méthode de mesure du champ coercitif des matériaux magnétiques en circuit magnétique ouvert. - CEI 60404-7 - (01-82)
- Modification 1 à la publication CEI 60404-8-1 d'avril 2001....
Laboratoires
Groupe d'Étude de la Matière Condensé GEMaC – Laboratoire de Magnétisme et d'Optique de Versailles LMOV http://www.gemac.uvsq.fr/
Materials Physics Group GPM http://www.univ-rouen.fr/gpm/index_francais.htm
Grenoble...
Magnet manufacturers
(Non-exhaustive list of the world's leading magnet manufacturers)
DMEGC: ferrite http://www.chinadmegc.com/chinadmegc/english/web/index.asp
Electron Energie Corporation (EEC) : Sm-Co http://www.electronenergy.com/
...
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