| 摘要 |
<p>A potentiometer, essentially characterized in that it comprises a thin plate of electrically insulating and mechanically strong material 1 of suitably quadrangular shape, which has a hole in the center and three symmetrically arranged holes on the side, two of which (4,5) are for insertion of the projections of the individual metal parts forming the terminals, 6,7 which are the ends of the resistant track 23 drawn out on a plane perpendicular to that of the plate, while the third side hole is for insertion of a projecting part of the commutator 11 forming a fixed limit 12 for the turning movement of the slider 13 and connected to a round conductor track 24 which is concentric with the resistant track 23. <IMAGE></p> |
