| 摘要 |
FIELD: vibration engineering. SUBSTANCE: two identical spiral springs 3, 4 are wound on opposite legs of core 1 in same plane and each of them is rigidly coupled through inner ends 5, 6 with core 1, both being wound in opposite directions and electrically shorted out by external ends 7, 8 which are at the same time mechanically coupled with shaft 9 in symmetrical opposition; shaft 9 is free to vibrate on its supports; novelty is that two identical spiral springs 3, 4 are electrically shorted out by external ends 7, 8 and internal ones 5, 6 through rectifier diodes, respectively; diodes of each spiral are of opposing polarity for forward current; spirals are mechanically coupled with shaft; surfaces of conducting spiral springs 3, 4 are coated with magnetically permeable film. EFFECT: simplified design and improved operating efficiency. 1 dwg |
