| 摘要 |
<p>"Inductive device". The device comprises a winding support (1) with a base which comprises connection points and on the upper side of which there is provided a centring member (19) whose exterior defines a cylindrical or conical surface which is coaxial with the cylindrical central portion (15) of a coil core (15, 19). The winding (13) is provided about the central portion. The coil core furthermore comprises a non-rotationally symmetrical upper flange portion (17) which cooperates with a ferromagnetic adjusting core (25) which is formed by a cap which is arranged over the coil core and whose portion which faces the base corresponds internally as regards shape and radial dimensions to the cylindrical or conical surface defined by the centring member. This portion encloses the centring member with a suitable fit, so that the adjusting core is rotatable about the axis of the coil core. The portion of the adjusting core (25) which is situated near the upper flange portion (17) of the coil core (15, 17) is also non-rotationally symmetrical.</p> |
