Français
2. Generating magnetic fields
2.1 Magnetic field sources
The characterization of technical magnetic materials requires the ability to generate and control the field over an amplitude range covering several orders of magnitude. If soft materials are to be tested, we can exploit the fields generated by suitably shaped coils, through which direct or alternating currents flow. For the characterization of hard materials, which require fields in excess of 10 4 -10 5 A/m, the use of conventional air coils is only conceivable in pulsed regime, due to obvious heat dissipation problems. To produce strong continuous or slowly varying fields, electromagnets (up to around 2 · 10 6 A/m) or...
The Ultimate Scientific and Technical Reference
This article is included in
Conversion of electrical energy
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Generating magnetic fields
Measuring magnetic fields
Bibliography
Digital media
KCDB database of the Bureau International des Poids et Mesures BIPM http://www.bipm.fr/BIPM-KCDB
Software tools
Software for electromagnetic finite element calculations
FEMM, http://femm.foster-miller.net (free 2D software)
Comsol, http://www.comsol.fr
Events
Materials for Electrical Engineering (MGE), France every 3 years.
Soft Magnetic Materials (SMM), Europe, odd years, next conference Turin Sept. 2009, http://www.magneticsmagazine.com
Directory
Manufacturers – Suppliers
Magnet Physics, http://www.magnet-physik.de
Brockhaus Messtechnik, http://www.brockhaus.net
...
The Ultimate Scientific and Technical Reference
