| 摘要 |
<p>PCT No. PCT/EP93/00072 Sec. 371 Date Oct. 28, 1994 Sec. 102(e) Date Oct. 28, 1994 PCT Filed Jan. 14, 1993 PCT Pub. No. WO93/22688 PCT Pub. Date Nov. 11, 1993.A device for measuring rotary motions having a signal generator ring which rotates with the rotating part and of a double-sided measuring coil. Within the core of the measuring coil there are a permanent magnet, which is magnetized perpendicularly to the coil axis, and two elongated pole shoes which are arranged on the pole surfaces of the permanent magnet and whose end pieces protrude from both sides of the coil and reach almost as far as the signal generator ring. The signal generator ring and the pole shoes are designed, arranged and attuned in respect of one another so that, during the rotary motion, the magnetic flux alternately passes via the end piece of one pole shoe to the end piece of the pole shoe arranged on the second pole surface, which end piece protrudes from the other side of the coil, and thereupon passes via the two other end pieces of the pole shoes. Provided as signal generator ring is a toothed wheel with inwardly directed teeth or several toothed wheels firmly coupled with one another.</p> |
