发明名称 |
Device and method for creating a region which is free of magnetic field, surrounded by a region with a magnetic field gradient, axle counter and fish plates with said device |
摘要 |
A device for keeping electrical insulation joints in rails free of faults is described. These joints form a significant source of faults in rail-borne transport systems in which rail-borne train protection or train detection systems are arranged. The device has magnets for creating a substantially field-free region with a field gradient in all directions leading away from the region. This substantially field-free region is located at the insulating part of an electrical insulation joint. The field gradient ensures that magnetizable material always moves away from the field-free point. |
申请公布号 |
EP1717125(A1) |
申请公布日期 |
2006.11.02 |
申请号 |
EP20060075941 |
申请日期 |
2006.04.21 |
申请人 |
RAIL ROAD SYSTEMS;VAN ITERSON, TIJMEN ARIE CORSJAAN WILLEM |
发明人 |
GRAVENDEEL, BAS |
分类号 |
B61L1/20;B61L1/16;E01B11/54;H01F7/20;H03K17/95 |
主分类号 |
B61L1/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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