PURPOSE: To prevent a crosstalk of adjacent channels by forming the opposite sections of magnetic materials functioning as the magnetic paths of each channel of a rotor and a stator in pointed projecting edges.
CONSTITUTION: The rotor 10 is constituted by ring-shaped magnetic materials 12, 13, 14 of high permeability, nonmagnetic material rings 15, 16 and windings 17, 18, 19 each held in the inner circumferential grooves of the magnetic materials 12, 13, 14. The knife edge-shaped projecting edges are formed to the upper and lower edges of circumferential surfaces in the magnetic materials 12, 13, 14. The windings 17, 18, 19 are each connected to a magnetic head, and flow the signal currents of the channels CH1, CH2, CH3. The stator 11 is constituted by circular ring-shaped magnetic materials 23, 24, 25 of high permeability corresponding to the structure of the rotor, nonmagnetic materials 26, 27 and windings 28, 29, 30. The knife edge-shaped projecting edges are formed to the upper and lower edge sections of outer circumferences in each of the magnetic materials 23, 24, 25.
OOTA JIYUNPEI
MORISAWA MATSUO
| JPS50118915U | 1975-09-29 |