| 摘要 |
The two aerial coils (11,12) are arranged with parallel central axes (13,14). A central part of the appts. is used for connection to the sepd. unit to be driven, and which likewise incorporates a coil (16). The radii of the two aerial coils are equal, and each coil has a specific equal number of windings. The coil in the sepd. unit is arranged with its central axis (18) parallel to the plane of the two aerial coils. The sepd. unit coil can easily be arranged in connection with a surface with its central axis parallel with that surface. The surface can be of magnetic or metallic material without the coupling between the double coils and the sepd. coil being disturbed unacceptably. |
