| 摘要 |
<p>PURPOSE:Not only to reduce the weight and the size of a rotary transformer as low as possible but to eliminate a signal disturbance due to a crosstalk by forming a material layer of low permeability between adjacent coil pairs of cores of rotor and stator sides. CONSTITUTION:Cores 1 and 5, 2 and 6, 3 and 7, and 4 and 8 of corresponding rotor and stator are formed in a concentrically annular structure at the center of rotation of a rotary transformer as a center, annular grooves 9 are formed on the surfaces, and rotor coils 10 and stator coils 11 are disposed in the grooves 9. With the construction, magnetic fluxes generated between the corresponding cores of the rotor and the stator are disturbed by a resin layer 12 having small permeability so as to be scarcely fed to adjacent core thereby to easily reduce the influence of a crosstalk. The material having small permeability is considered to be variously such as ceramics.</p> |
