| 摘要 |
PCT No. PCT/EP95/02633 Sec. 371 Date Jan. 10, 1997 Sec. 102(e) Date Jan. 10, 1997 PCT Filed Jul. 7, 1995 PCT Pub. No. WO96/01779 PCT Pub. Date Jan. 25, 1996An electromagnetic hysteresis brake is provided with a two-part pole ring with an inner and an outer pole ring part (5, 6) and a field coil (10) and further provided with a rotating ring (3) made of a permanent-magnetic material, the ring (3) projects into an annular air gap (11) of the pole ring which is formed between the inner and the outer pole ring parts (5, 6), at least one of the air gaps (12) of the brake is adjustable.
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