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Multipole magnets for moving coil instruments - with two concentric ring magnets magnetized radially with a coil in the inter magnet gap
Multipole magnets for moving coil instruments - with two concentric ring magnets magnetized radially with a coil in the inter magnet gap
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机译:用于移动线圈乐器的多极磁体-两个同心环形磁体在内部磁体间隙中被一个线圈径向磁化
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摘要
The simple arrangement of magnets is for use in a moving coil instrument such as a galvanometer. The coil travels in the gap between two ring shaped magnets polarized radially with an odd number (such as five) of pole pairs. The excursion of the coil is limited by this means even if too large a current is passed through it. This represents an advance on previous systems in which overcurrent can result in damage to the coil. The details of the magnets and spool are not given, through a perspective schematic diagram of the system is provided.
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