| 摘要 |
<p>The device has a shaft (1) rotatable relative to housings (7, 7.1). A voice coil motor (2) has a printed circuit board (2.1) movable relative to magnet supports (2.3) and permanent magnets (2.4). A position measuring device (3) has a transparent phase grid (3.1) and a reading unit (3.2) that are movable relative to each other. A cable (6) electrically connects the shaft, board or grid with a stationary device, and has a spiral-shaped, radially outward, guiding characteristic depending on the shaft provided in a centre position. The housings have surfaces that are lined or coated with a friction and abrasion-poor material e.g. plastic such as polytetrafluoroethylene (PTFE).</p> |
