| 摘要 |
PURPOSE:To prevent the intrusion of noises by providing a superconductor on the outer side of the magnetic circuit of a magnetic head so as to circumnutate around the magnetic circuit, thereby decreasing the leak magnetic fluxes intruding into the magnetic head from the outside or the leak magnetic fluxes leaking from the magnetic head to the outside. CONSTITUTION:The magnetic head 31 has a head core 11b constituting the magnetic circuit 11e, a slider 11a and the band-shaped superconductor 31a provided on the outer side of the coil 11c wound on the head core 11b so as to circumnutate around the magnetic circuit 11e, i.e. to circumnutate around the head core 11b and the slider 11a. The superconductor 31a provided on the outer side of the magnetic circuit 11e to circumnutate around the magnetic circuit decreases the leak magnetic fluxes intruding into the magnetic head 31 and decreases the leak magnetic fluxes to the other when current is passed to the coil of the magnetic head 31. The noises by the leak magnetic fluxes from the other are decreased in this way and the influence of the leak magnetic fluxes to be exerted on the other is lessened. |
