| 摘要 |
Magnetic driving system comprising two concentric rings (32, 36) of magnets arranged in such a way that the forces exerted by one ring (32) on the other (36) are repulsive, there being equal numbers of magnets sufficient to ensure the self-centering of the inner ring (36) with respect to the outer ring (32), a rotational movement of one of these rings about its central axis causing the rotation of the other ring, and counting device comprising such a magnetic driving system. Application in particular to water meters. <IMAGE> |
