| 摘要 |
<p>PURPOSE: To provide a magnetic field application core having an excellent characteristic and low price, by forming a core of a form of a pair of glasses through bending, using a small amount of high-permeability plate materials with a good magnetic characteristic. CONSTITUTION: A magnetic field application core 6 comprises two magnetic flux collecting plates 7a, 7b having cup-like protrusions formed on their flat plates made of a high-permeability material the ends of whose cup-like protrusions are opposed to each other with a gap 2 between them and a prismatic magnetic flux collecting cylinder 9 made of a high-permeability material which is attached fixedly to the outer peripheries of the two sheets of the magnetic flux collecting plates 7a, 7b disposed oppositely to each other. Thus, the core 6 of a form of a pair of glasses is formed.</p> |
