FIELD: electricity.
SUBSTANCE: two pairs of coaxially aligned hard-magnetic ferromagnetic toroids are glued to each other with rectangular shape of cross section so that in the first pair the toroids of identical thickness are inserted into each other with a gap. Identical toroids of the second pair close by their flat faces the gap of the first pair of toroids at both sides, forming a toroidal cavity between the four toroids. Coils of their magnetisation are wound previously onto all four toroids. The coil of the first toroid of the first pair is connected with the coil of the first electromagnet, forming a radial-circular magnetic field, into which the first toroid of the first pair is placed, and its magnetisation with DC is carried out. Similar operations are carried out with the second toroid of the first pair, using the second electromagnet with dimensions of the circular gap, corresponding to dimensions of the second toroid of the first pair. Then coils of magnetisation of the first and second toroids of the second pair are connected in series to each other and with the coil of the third electromagnet, forming a homogeneous solenoidal magnetic field, orthogonal to flat faces of the first and second toroids of the second pair, placed into the magnetic field of the third electromagnet, and they perform magnetisation of the second pair of toroids. After magnetisation, magnetisation coils are removed from all four toroids. Toroids are glued to each other, so that all identical magnetic poles are turned into the formed toroidal cavity with identical directions of tangential component vectors of magnetisation of all four toroids.
EFFECT: development of toroidal magnetic field without usage of electric energy.
5 dwg
