| 摘要 |
<p>A contactless electric control handle having a field coil for forming an electro-magnetic field, inductive pick-up coils angularly spaced apart around the axis of the field. The rod of the control handle constitutes the core of the field coil. The field coil and the pick-up coils have the shape of annular, concentric conducts, whereas ferrite is applied to the rod in order to employ high frequencies up to 1 MHz.</p> |
